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Keep all operations the same but rewrite the snippet in PHP.
import java.util.*; import java.io.*; public class TPKA { public static void main(String... args) { double[] input = new double[11]; double userInput = 0.0; Scanner in = new Scanner(System.in); for(int i = 0; i < 11; i++) { System.out.print("Please enter a number: "); String s = in.nextLine(); try { userInput = Double.parseDouble(s); } catch (NumberFormatException e) { System.out.println("You entered invalid input, exiting"); System.exit(1); } input[i] = userInput; } for(int j = 10; j >= 0; j--) { double x = input[j]; double y = f(x); if( y < 400.0) { System.out.printf("f( %.2f ) = %.2f\n", x, y); } else { System.out.printf("f( %.2f ) = %s\n", x, "TOO LARGE"); } } } private static double f(double x) { return Math.pow(Math.abs(x), 0.5) + (5*(Math.pow(x, 3))); } }
<?php function f($n) { return sqrt(abs($n)) + 5 * $n * $n * $n; } $sArray = []; echo "Enter 11 numbers.\n"; for ($i = 0; $i <= 10; $i++) { echo $i + 1, " - Enter number: "; array_push($sArray, (float)fgets(STDIN)); } echo PHP_EOL; $sArray = array_reverse($sArray); foreach ($sArray as $s) { $r = f($s); echo "f(", $s, ") = "; if ($r > 400) echo "overflow\n"; else echo $r, PHP_EOL; } ?>
Write the same code in PHP as shown below in Java.
import java.util.*; import java.io.*; public class TPKA { public static void main(String... args) { double[] input = new double[11]; double userInput = 0.0; Scanner in = new Scanner(System.in); for(int i = 0; i < 11; i++) { System.out.print("Please enter a number: "); String s = in.nextLine(); try { userInput = Double.parseDouble(s); } catch (NumberFormatException e) { System.out.println("You entered invalid input, exiting"); System.exit(1); } input[i] = userInput; } for(int j = 10; j >= 0; j--) { double x = input[j]; double y = f(x); if( y < 400.0) { System.out.printf("f( %.2f ) = %.2f\n", x, y); } else { System.out.printf("f( %.2f ) = %s\n", x, "TOO LARGE"); } } } private static double f(double x) { return Math.pow(Math.abs(x), 0.5) + (5*(Math.pow(x, 3))); } }
<?php function f($n) { return sqrt(abs($n)) + 5 * $n * $n * $n; } $sArray = []; echo "Enter 11 numbers.\n"; for ($i = 0; $i <= 10; $i++) { echo $i + 1, " - Enter number: "; array_push($sArray, (float)fgets(STDIN)); } echo PHP_EOL; $sArray = array_reverse($sArray); foreach ($sArray as $s) { $r = f($s); echo "f(", $s, ") = "; if ($r > 400) echo "overflow\n"; else echo $r, PHP_EOL; } ?>
Generate a PHP translation of this Java snippet without changing its computational steps.
public class MiddleThreeDigits { public static void main(String[] args) { final long[] passing = {123, 12345, 1234567, 987654321, 10001, -10001, -123, -100, 100, -12345, Long.MIN_VALUE, Long.MAX_VALUE}; final int[] failing = {1, 2, -1, -10, 2002, -2002, 0, Integer.MIN_VALUE, Integer.MAX_VALUE}; for (long n : passing) System.out.printf("middleThreeDigits(%s): %s\n", n, middleThreeDigits(n)); for (int n : failing) System.out.printf("middleThreeDigits(%s): %s\n", n, middleThreeDigits(n)); } public static <T> String middleThreeDigits(T n) { String s = String.valueOf(n); if (s.charAt(0) == '-') s = s.substring(1); int len = s.length(); if (len < 3 || len % 2 == 0) return "Need odd and >= 3 digits"; int mid = len / 2; return s.substring(mid - 1, mid + 2); } }
function middlethree($integer) { $int = (int)str_replace('-','',$integer); $length = strlen($int); if(is_int($int)) { if($length >= 3) { if($length % 2 == 1) { $middle = floor($length / 2) - 1; return substr($int,$middle, 3); } else { return 'The value must contain an odd amount of digits...'; } } else { return 'The value must contain at least three digits...'; } } else { return 'The value does not appear to be an integer...'; } } $numbers = array(123, 12345, 1234567, 987654321, 10001, -10001, -123, -100, 100, -12345, 1, 2, -1, -10, 2002, -2002, 0); foreach($numbers as $nums) { echo $nums.' : '.middlethree($nums). '<br>'; }
Generate a PHP translation of this Java snippet without changing its computational steps.
public class MiddleThreeDigits { public static void main(String[] args) { final long[] passing = {123, 12345, 1234567, 987654321, 10001, -10001, -123, -100, 100, -12345, Long.MIN_VALUE, Long.MAX_VALUE}; final int[] failing = {1, 2, -1, -10, 2002, -2002, 0, Integer.MIN_VALUE, Integer.MAX_VALUE}; for (long n : passing) System.out.printf("middleThreeDigits(%s): %s\n", n, middleThreeDigits(n)); for (int n : failing) System.out.printf("middleThreeDigits(%s): %s\n", n, middleThreeDigits(n)); } public static <T> String middleThreeDigits(T n) { String s = String.valueOf(n); if (s.charAt(0) == '-') s = s.substring(1); int len = s.length(); if (len < 3 || len % 2 == 0) return "Need odd and >= 3 digits"; int mid = len / 2; return s.substring(mid - 1, mid + 2); } }
function middlethree($integer) { $int = (int)str_replace('-','',$integer); $length = strlen($int); if(is_int($int)) { if($length >= 3) { if($length % 2 == 1) { $middle = floor($length / 2) - 1; return substr($int,$middle, 3); } else { return 'The value must contain an odd amount of digits...'; } } else { return 'The value must contain at least three digits...'; } } else { return 'The value does not appear to be an integer...'; } } $numbers = array(123, 12345, 1234567, 987654321, 10001, -10001, -123, -100, 100, -12345, 1, 2, -1, -10, 2002, -2002, 0); foreach($numbers as $nums) { echo $nums.' : '.middlethree($nums). '<br>'; }
Change the following Java code into PHP without altering its purpose.
public class OddWord { interface CharHandler { CharHandler handle(char c) throws Exception; } final CharHandler fwd = new CharHandler() { public CharHandler handle(char c) { System.out.print(c); return (Character.isLetter(c) ? fwd : rev); } }; class Reverser extends Thread implements CharHandler { Reverser() { setDaemon(true); start(); } private Character ch; private char recur() throws Exception { notify(); while (ch == null) wait(); char c = ch, ret = c; ch = null; if (Character.isLetter(c)) { ret = recur(); System.out.print(c); } return ret; } public synchronized void run() { try { while (true) { System.out.print(recur()); notify(); } } catch (Exception e) {} } public synchronized CharHandler handle(char c) throws Exception { while (ch != null) wait(); ch = c; notify(); while (ch != null) wait(); return (Character.isLetter(c) ? rev : fwd); } } final CharHandler rev = new Reverser(); public void loop() throws Exception { CharHandler handler = fwd; int c; while ((c = System.in.read()) >= 0) { handler = handler.handle((char) c); } } public static void main(String[] args) throws Exception { new OddWord().loop(); } }
$odd = function ($prev) use ( &$odd ) { $a = fgetc(STDIN); if (!ctype_alpha($a)) { $prev(); fwrite(STDOUT, $a); return $a != '.'; } $clos = function () use ($a , $prev) { fwrite(STDOUT, $a); $prev(); }; return $odd($clos); }; $even = function () { while (true) { $c = fgetc(STDIN); fwrite(STDOUT, $c); if (!ctype_alpha($c)) { return $c != "."; } } }; $prev = function(){}; $e = false; while ($e ? $odd($prev) : $even()) { $e = !$e; }
Write the same algorithm in PHP as shown in this Java implementation.
public class OddWord { interface CharHandler { CharHandler handle(char c) throws Exception; } final CharHandler fwd = new CharHandler() { public CharHandler handle(char c) { System.out.print(c); return (Character.isLetter(c) ? fwd : rev); } }; class Reverser extends Thread implements CharHandler { Reverser() { setDaemon(true); start(); } private Character ch; private char recur() throws Exception { notify(); while (ch == null) wait(); char c = ch, ret = c; ch = null; if (Character.isLetter(c)) { ret = recur(); System.out.print(c); } return ret; } public synchronized void run() { try { while (true) { System.out.print(recur()); notify(); } } catch (Exception e) {} } public synchronized CharHandler handle(char c) throws Exception { while (ch != null) wait(); ch = c; notify(); while (ch != null) wait(); return (Character.isLetter(c) ? rev : fwd); } } final CharHandler rev = new Reverser(); public void loop() throws Exception { CharHandler handler = fwd; int c; while ((c = System.in.read()) >= 0) { handler = handler.handle((char) c); } } public static void main(String[] args) throws Exception { new OddWord().loop(); } }
$odd = function ($prev) use ( &$odd ) { $a = fgetc(STDIN); if (!ctype_alpha($a)) { $prev(); fwrite(STDOUT, $a); return $a != '.'; } $clos = function () use ($a , $prev) { fwrite(STDOUT, $a); $prev(); }; return $odd($clos); }; $even = function () { while (true) { $c = fgetc(STDIN); fwrite(STDOUT, $c); if (!ctype_alpha($c)) { return $c != "."; } } }; $prev = function(){}; $e = false; while ($e ? $odd($prev) : $even()) { $e = !$e; }
Preserve the algorithm and functionality while converting the code from Java to PHP.
public static void main(String[] args){ System.out.println(soundex("Soundex")); System.out.println(soundex("Example")); System.out.println(soundex("Sownteks")); System.out.println(soundex("Ekzampul")); } private static String getCode(char c){ switch(c){ case 'B': case 'F': case 'P': case 'V': return "1"; case 'C': case 'G': case 'J': case 'K': case 'Q': case 'S': case 'X': case 'Z': return "2"; case 'D': case 'T': return "3"; case 'L': return "4"; case 'M': case 'N': return "5"; case 'R': return "6"; default: return ""; } } public static String soundex(String s){ String code, previous, soundex; code = s.toUpperCase().charAt(0) + ""; previous = getCode(s.toUpperCase().charAt(0)); for(int i = 1;i < s.length();i++){ String current = getCode(s.toUpperCase().charAt(i)); if(current.length() > 0 && !current.equals(previous)){ code = code + current; } previous = current; } soundex = (code + "0000").substring(0, 4); return soundex; }
<?php echo soundex("Soundex"), "\n"; // S532 echo soundex("Example"), "\n"; // E251 echo soundex("Sownteks"), "\n"; // S532 echo soundex("Ekzampul"), "\n"; // E251 ?>
Port the following code from Java to PHP with equivalent syntax and logic.
public static void main(String[] args){ System.out.println(soundex("Soundex")); System.out.println(soundex("Example")); System.out.println(soundex("Sownteks")); System.out.println(soundex("Ekzampul")); } private static String getCode(char c){ switch(c){ case 'B': case 'F': case 'P': case 'V': return "1"; case 'C': case 'G': case 'J': case 'K': case 'Q': case 'S': case 'X': case 'Z': return "2"; case 'D': case 'T': return "3"; case 'L': return "4"; case 'M': case 'N': return "5"; case 'R': return "6"; default: return ""; } } public static String soundex(String s){ String code, previous, soundex; code = s.toUpperCase().charAt(0) + ""; previous = getCode(s.toUpperCase().charAt(0)); for(int i = 1;i < s.length();i++){ String current = getCode(s.toUpperCase().charAt(i)); if(current.length() > 0 && !current.equals(previous)){ code = code + current; } previous = current; } soundex = (code + "0000").substring(0, 4); return soundex; }
<?php echo soundex("Soundex"), "\n"; // S532 echo soundex("Example"), "\n"; // E251 echo soundex("Sownteks"), "\n"; // S532 echo soundex("Ekzampul"), "\n"; // E251 ?>
Change the following Java code into PHP without altering its purpose.
import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; public enum ImageProcessing { ; public static void main(String[] args) throws IOException { BufferedImage img = ImageIO.read(new File("example.png")); BufferedImage bwimg = toBlackAndWhite(img); ImageIO.write(bwimg, "png", new File("example-bw.png")); } private static int luminance(int rgb) { int r = (rgb >> 16) & 0xFF; int g = (rgb >> 8) & 0xFF; int b = rgb & 0xFF; return (r + b + g) / 3; } private static BufferedImage toBlackAndWhite(BufferedImage img) { int width = img.getWidth(); int height = img.getHeight(); int[] histo = computeHistogram(img); int median = getMedian(width * height, histo); BufferedImage bwimg = new BufferedImage(width, height, img.getType()); for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { bwimg.setRGB(x, y, luminance(img.getRGB(x, y)) >= median ? 0xFFFFFFFF : 0xFF000000); } } return bwimg; } private static int[] computeHistogram(BufferedImage img) { int width = img.getWidth(); int height = img.getHeight(); int[] histo = new int[256]; for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { histo[luminance(img.getRGB(x, y))]++; } } return histo; } private static int getMedian(int total, int[] histo) { int median = 0; int sum = 0; for (int i = 0; i < histo.length && sum + histo[i] < total / 2; i++) { sum += histo[i]; median++; } return median; } }
define('src_name', 'input.jpg'); // source image define('dest_name', 'output.jpg'); // destination image $img = imagecreatefromjpeg(src_name); // read image if(empty($img)){ echo 'Image could not be loaded!'; exit; } $black = imagecolorallocate($img, 0, 0, 0); $white = imagecolorallocate($img, 255, 255, 255); $width = imagesx($img); $height = imagesy($img); $array_lum = array(); // for storage of luminosity of each pixel $sum_lum = 0; // total sum of luminosity $average_lum = 0; // average luminosity of whole image for($x = 0; $x < $width; $x++){ for($y = 0; $y < $height; $y++){ $color = imagecolorat($img, $x, $y); $r = ($color >> 16) & 0xFF; $g = ($color >> 8) & 0xFF; $b = $color & 0xFF; $array_lum[$x][$y] = ($r + $g + $b); $sum_lum += $array_lum[$x][$y]; } } $average_lum = $sum_lum / ($width * $height); for($x = 0; $x < $width; $x++){ for($y = 0; $y < $height; $y++){ if($array_lum[$x][$y] > $average_lum){ imagesetpixel($img, $x, $y, $white); } else{ imagesetpixel($img, $x, $y, $black); } } } imagejpeg($img, dest_name); if(!file_exists(dest_name)){ echo 'Image not saved! Check permission!'; }
Can you help me rewrite this code in PHP instead of Java, keeping it the same logically?
import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; public enum ImageProcessing { ; public static void main(String[] args) throws IOException { BufferedImage img = ImageIO.read(new File("example.png")); BufferedImage bwimg = toBlackAndWhite(img); ImageIO.write(bwimg, "png", new File("example-bw.png")); } private static int luminance(int rgb) { int r = (rgb >> 16) & 0xFF; int g = (rgb >> 8) & 0xFF; int b = rgb & 0xFF; return (r + b + g) / 3; } private static BufferedImage toBlackAndWhite(BufferedImage img) { int width = img.getWidth(); int height = img.getHeight(); int[] histo = computeHistogram(img); int median = getMedian(width * height, histo); BufferedImage bwimg = new BufferedImage(width, height, img.getType()); for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { bwimg.setRGB(x, y, luminance(img.getRGB(x, y)) >= median ? 0xFFFFFFFF : 0xFF000000); } } return bwimg; } private static int[] computeHistogram(BufferedImage img) { int width = img.getWidth(); int height = img.getHeight(); int[] histo = new int[256]; for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { histo[luminance(img.getRGB(x, y))]++; } } return histo; } private static int getMedian(int total, int[] histo) { int median = 0; int sum = 0; for (int i = 0; i < histo.length && sum + histo[i] < total / 2; i++) { sum += histo[i]; median++; } return median; } }
define('src_name', 'input.jpg'); // source image define('dest_name', 'output.jpg'); // destination image $img = imagecreatefromjpeg(src_name); // read image if(empty($img)){ echo 'Image could not be loaded!'; exit; } $black = imagecolorallocate($img, 0, 0, 0); $white = imagecolorallocate($img, 255, 255, 255); $width = imagesx($img); $height = imagesy($img); $array_lum = array(); // for storage of luminosity of each pixel $sum_lum = 0; // total sum of luminosity $average_lum = 0; // average luminosity of whole image for($x = 0; $x < $width; $x++){ for($y = 0; $y < $height; $y++){ $color = imagecolorat($img, $x, $y); $r = ($color >> 16) & 0xFF; $g = ($color >> 8) & 0xFF; $b = $color & 0xFF; $array_lum[$x][$y] = ($r + $g + $b); $sum_lum += $array_lum[$x][$y]; } } $average_lum = $sum_lum / ($width * $height); for($x = 0; $x < $width; $x++){ for($y = 0; $y < $height; $y++){ if($array_lum[$x][$y] > $average_lum){ imagesetpixel($img, $x, $y, $white); } else{ imagesetpixel($img, $x, $y, $black); } } } imagejpeg($img, dest_name); if(!file_exists(dest_name)){ echo 'Image not saved! Check permission!'; }
Keep all operations the same but rewrite the snippet in PHP.
char a = 'a'; String b = "abc"; char doubleQuote = '"'; char singleQuote = '\''; String singleQuotes = "''"; String doubleQuotes = "\"\"";
'c'; # character 'hello'; # these two strings are the same "hello"; 'Hi $name. How are you?'; # result: "Hi $name. How are you?" "Hi $name. How are you?"; # result: "Hi Bob. How are you?" '\n'; # 2-character string with a backslash and "n" "\n"; # newline character `ls`; # runs a command in the shell and returns the output as a string <<END # Here-Document Hi, whatever goes here gets put into the string, including newlines and $variables, until the label we put above END; <<'END' # Here-Document like single-quoted Same as above, but no interpolation of $variables. END;
Generate an equivalent PHP version of this Java code.
char a = 'a'; String b = "abc"; char doubleQuote = '"'; char singleQuote = '\''; String singleQuotes = "''"; String doubleQuotes = "\"\"";
'c'; # character 'hello'; # these two strings are the same "hello"; 'Hi $name. How are you?'; # result: "Hi $name. How are you?" "Hi $name. How are you?"; # result: "Hi Bob. How are you?" '\n'; # 2-character string with a backslash and "n" "\n"; # newline character `ls`; # runs a command in the shell and returns the output as a string <<END # Here-Document Hi, whatever goes here gets put into the string, including newlines and $variables, until the label we put above END; <<'END' # Here-Document like single-quoted Same as above, but no interpolation of $variables. END;
Port the following code from Java to PHP with equivalent syntax and logic.
enum Fruits{ APPLE, BANANA, CHERRY }
$fruits = array( "apple", "banana", "cherry" ); $fruits = array( "apple" => 0, "banana" => 1, "cherry" => 2 ); class Fruit { const APPLE = 0; const BANANA = 1; const CHERRY = 2; } $value = Fruit::APPLE; define("FRUIT_APPLE", 0); define("FRUIT_BANANA", 1); define("FRUIT_CHERRY", 2);
Ensure the translated PHP code behaves exactly like the original Java snippet.
enum Fruits{ APPLE, BANANA, CHERRY }
$fruits = array( "apple", "banana", "cherry" ); $fruits = array( "apple" => 0, "banana" => 1, "cherry" => 2 ); class Fruit { const APPLE = 0; const BANANA = 1; const CHERRY = 2; } $value = Fruit::APPLE; define("FRUIT_APPLE", 0); define("FRUIT_BANANA", 1); define("FRUIT_CHERRY", 2);
Write the same code in PHP as shown below in Java.
import java.io.IOException; public class Interpreter { public final static int MEMORY_SIZE = 65536; private final char[] memory = new char[MEMORY_SIZE]; private int dp; private int ip; private int border; private void reset() { for (int i = 0; i < MEMORY_SIZE; i++) { memory[i] = 0; } ip = 0; dp = 0; } private void load(String program) { if (program.length() > MEMORY_SIZE - 2) { throw new RuntimeException("Not enough memory."); } reset(); for (; dp < program.length(); dp++) { memory[dp] = program.charAt(dp); } border = dp; dp += 1; } public void execute(String program) { load(program); char instruction = memory[ip]; while (instruction != 0) { switch (instruction) { case '>': dp++; if (dp == MEMORY_SIZE) { throw new RuntimeException("Out of memory."); } break; case '<': dp--; if (dp == border) { throw new RuntimeException("Invalid data pointer."); } break; case '+': memory[dp]++; break; case '-': memory[dp]--; break; case '.': System.out.print(memory[dp]); break; case ',': try { memory[dp] = (char) System.in.read(); } catch (IOException e) { throw new RuntimeException(e); } break; case '[': if (memory[dp] == 0) { skipLoop(); } break; case ']': if (memory[dp] != 0) { loop(); } break; default: throw new RuntimeException("Unknown instruction."); } instruction = memory[++ip]; } } private void skipLoop() { int loopCount = 0; while (memory[ip] != 0) { if (memory[ip] == '[') { loopCount++; } else if (memory[ip] == ']') { loopCount--; if (loopCount == 0) { return; } } ip++; } if (memory[ip] == 0) { throw new RuntimeException("Unable to find a matching ']'."); } } private void loop() { int loopCount = 0; while (ip >= 0) { if (memory[ip] == ']') { loopCount++; } else if (memory[ip] == '[') { loopCount--; if (loopCount == 0) { return; } } ip--; } if (ip == -1) { throw new RuntimeException("Unable to find a matching '['."); } } public static void main(String[] args) { Interpreter interpreter = new Interpreter(); interpreter.execute(">++++++++[-<+++++++++>]<.>>+>-[+]++>++>+++[>[->+++<<+++>]<<]>-----.>->+++..+++.>-.<<+[>[+>+]>>]<--------------.>>.+++.------.--------.>+.>+."); } }
<?php function brainfuck_interpret(&$s, &$_s, &$d, &$_d, &$i, &$_i, &$o) { do { switch($s[$_s]) { case '+': $d[$_d] = chr(ord($d[$_d]) + 1); break; case '-': $d[$_d] = chr(ord($d[$_d]) - 1); break; case '>': $_d++; if(!isset($d[$_d])) $d[$_d] = chr(0); break; case '<': $_d--; break; case '.': $o .= $d[$_d]; break; case ',': $d[$_d] = $_i==strlen($i) ? chr(0) : $i[$_i++]; break; case '[': if((int)ord($d[$_d]) == 0) { $brackets = 1; while($brackets && $_s++ < strlen($s)) { if($s[$_s] == '[') $brackets++; else if($s[$_s] == ']') $brackets--; } } else { $pos = $_s++-1; if(brainfuck_interpret($s, $_s, $d, $_d, $i, $_i, $o)) $_s = $pos; } break; case ']': return ((int)ord($d[$_d]) != 0); } } while(++$_s < strlen($s)); } function brainfuck($source, $input='') { $data = array(); $data[0] = chr(0); $data_index = 0; $source_index = 0; $input_index = 0; $output = ''; brainfuck_interpret($source, $source_index, $data, $data_index, $input, $input_index, $output); return $output; } $code = " >++++++++[<+++++++++>-]<.>>+>+>++>[-]+<[>[->+<<++++>]<<]>.+++++++..+++.> >+++++++.<<<[[-]<[-]>]<+++++++++++++++.>>.+++.------.--------.>>+.>++++. "; $inp = '123'; print brainfuck( $code, $inp );
Produce a language-to-language conversion: from Java to PHP, same semantics.
import java.io.IOException; public class Interpreter { public final static int MEMORY_SIZE = 65536; private final char[] memory = new char[MEMORY_SIZE]; private int dp; private int ip; private int border; private void reset() { for (int i = 0; i < MEMORY_SIZE; i++) { memory[i] = 0; } ip = 0; dp = 0; } private void load(String program) { if (program.length() > MEMORY_SIZE - 2) { throw new RuntimeException("Not enough memory."); } reset(); for (; dp < program.length(); dp++) { memory[dp] = program.charAt(dp); } border = dp; dp += 1; } public void execute(String program) { load(program); char instruction = memory[ip]; while (instruction != 0) { switch (instruction) { case '>': dp++; if (dp == MEMORY_SIZE) { throw new RuntimeException("Out of memory."); } break; case '<': dp--; if (dp == border) { throw new RuntimeException("Invalid data pointer."); } break; case '+': memory[dp]++; break; case '-': memory[dp]--; break; case '.': System.out.print(memory[dp]); break; case ',': try { memory[dp] = (char) System.in.read(); } catch (IOException e) { throw new RuntimeException(e); } break; case '[': if (memory[dp] == 0) { skipLoop(); } break; case ']': if (memory[dp] != 0) { loop(); } break; default: throw new RuntimeException("Unknown instruction."); } instruction = memory[++ip]; } } private void skipLoop() { int loopCount = 0; while (memory[ip] != 0) { if (memory[ip] == '[') { loopCount++; } else if (memory[ip] == ']') { loopCount--; if (loopCount == 0) { return; } } ip++; } if (memory[ip] == 0) { throw new RuntimeException("Unable to find a matching ']'."); } } private void loop() { int loopCount = 0; while (ip >= 0) { if (memory[ip] == ']') { loopCount++; } else if (memory[ip] == '[') { loopCount--; if (loopCount == 0) { return; } } ip--; } if (ip == -1) { throw new RuntimeException("Unable to find a matching '['."); } } public static void main(String[] args) { Interpreter interpreter = new Interpreter(); interpreter.execute(">++++++++[-<+++++++++>]<.>>+>-[+]++>++>+++[>[->+++<<+++>]<<]>-----.>->+++..+++.>-.<<+[>[+>+]>>]<--------------.>>.+++.------.--------.>+.>+."); } }
<?php function brainfuck_interpret(&$s, &$_s, &$d, &$_d, &$i, &$_i, &$o) { do { switch($s[$_s]) { case '+': $d[$_d] = chr(ord($d[$_d]) + 1); break; case '-': $d[$_d] = chr(ord($d[$_d]) - 1); break; case '>': $_d++; if(!isset($d[$_d])) $d[$_d] = chr(0); break; case '<': $_d--; break; case '.': $o .= $d[$_d]; break; case ',': $d[$_d] = $_i==strlen($i) ? chr(0) : $i[$_i++]; break; case '[': if((int)ord($d[$_d]) == 0) { $brackets = 1; while($brackets && $_s++ < strlen($s)) { if($s[$_s] == '[') $brackets++; else if($s[$_s] == ']') $brackets--; } } else { $pos = $_s++-1; if(brainfuck_interpret($s, $_s, $d, $_d, $i, $_i, $o)) $_s = $pos; } break; case ']': return ((int)ord($d[$_d]) != 0); } } while(++$_s < strlen($s)); } function brainfuck($source, $input='') { $data = array(); $data[0] = chr(0); $data_index = 0; $source_index = 0; $input_index = 0; $output = ''; brainfuck_interpret($source, $source_index, $data, $data_index, $input, $input_index, $output); return $output; } $code = " >++++++++[<+++++++++>-]<.>>+>+>++>[-]+<[>[->+<<++++>]<<]>.+++++++..+++.> >+++++++.<<<[[-]<[-]>]<+++++++++++++++.>>.+++.------.--------.>>+.>++++. "; $inp = '123'; print brainfuck( $code, $inp );
Keep all operations the same but rewrite the snippet in PHP.
import java.io.IOException; public class Interpreter { public final static int MEMORY_SIZE = 65536; private final char[] memory = new char[MEMORY_SIZE]; private int dp; private int ip; private int border; private void reset() { for (int i = 0; i < MEMORY_SIZE; i++) { memory[i] = 0; } ip = 0; dp = 0; } private void load(String program) { if (program.length() > MEMORY_SIZE - 2) { throw new RuntimeException("Not enough memory."); } reset(); for (; dp < program.length(); dp++) { memory[dp] = program.charAt(dp); } border = dp; dp += 1; } public void execute(String program) { load(program); char instruction = memory[ip]; while (instruction != 0) { switch (instruction) { case '>': dp++; if (dp == MEMORY_SIZE) { throw new RuntimeException("Out of memory."); } break; case '<': dp--; if (dp == border) { throw new RuntimeException("Invalid data pointer."); } break; case '+': memory[dp]++; break; case '-': memory[dp]--; break; case '.': System.out.print(memory[dp]); break; case ',': try { memory[dp] = (char) System.in.read(); } catch (IOException e) { throw new RuntimeException(e); } break; case '[': if (memory[dp] == 0) { skipLoop(); } break; case ']': if (memory[dp] != 0) { loop(); } break; default: throw new RuntimeException("Unknown instruction."); } instruction = memory[++ip]; } } private void skipLoop() { int loopCount = 0; while (memory[ip] != 0) { if (memory[ip] == '[') { loopCount++; } else if (memory[ip] == ']') { loopCount--; if (loopCount == 0) { return; } } ip++; } if (memory[ip] == 0) { throw new RuntimeException("Unable to find a matching ']'."); } } private void loop() { int loopCount = 0; while (ip >= 0) { if (memory[ip] == ']') { loopCount++; } else if (memory[ip] == '[') { loopCount--; if (loopCount == 0) { return; } } ip--; } if (ip == -1) { throw new RuntimeException("Unable to find a matching '['."); } } public static void main(String[] args) { Interpreter interpreter = new Interpreter(); interpreter.execute(">++++++++[-<+++++++++>]<.>>+>-[+]++>++>+++[>[->+++<<+++>]<<]>-----.>->+++..+++.>-.<<+[>[+>+]>>]<--------------.>>.+++.------.--------.>+.>+."); } }
<?php function brainfuck_interpret(&$s, &$_s, &$d, &$_d, &$i, &$_i, &$o) { do { switch($s[$_s]) { case '+': $d[$_d] = chr(ord($d[$_d]) + 1); break; case '-': $d[$_d] = chr(ord($d[$_d]) - 1); break; case '>': $_d++; if(!isset($d[$_d])) $d[$_d] = chr(0); break; case '<': $_d--; break; case '.': $o .= $d[$_d]; break; case ',': $d[$_d] = $_i==strlen($i) ? chr(0) : $i[$_i++]; break; case '[': if((int)ord($d[$_d]) == 0) { $brackets = 1; while($brackets && $_s++ < strlen($s)) { if($s[$_s] == '[') $brackets++; else if($s[$_s] == ']') $brackets--; } } else { $pos = $_s++-1; if(brainfuck_interpret($s, $_s, $d, $_d, $i, $_i, $o)) $_s = $pos; } break; case ']': return ((int)ord($d[$_d]) != 0); } } while(++$_s < strlen($s)); } function brainfuck($source, $input='') { $data = array(); $data[0] = chr(0); $data_index = 0; $source_index = 0; $input_index = 0; $output = ''; brainfuck_interpret($source, $source_index, $data, $data_index, $input, $input_index, $output); return $output; } $code = " >++++++++[<+++++++++>-]<.>>+>+>++>[-]+<[>[->+<<++++>]<<]>.+++++++..+++.> >+++++++.<<<[[-]<[-]>]<+++++++++++++++.>>.+++.------.--------.>>+.>++++. "; $inp = '123'; print brainfuck( $code, $inp );
Generate an equivalent PHP version of this Java code.
import java.io.IOException; public class Interpreter { public final static int MEMORY_SIZE = 65536; private final char[] memory = new char[MEMORY_SIZE]; private int dp; private int ip; private int border; private void reset() { for (int i = 0; i < MEMORY_SIZE; i++) { memory[i] = 0; } ip = 0; dp = 0; } private void load(String program) { if (program.length() > MEMORY_SIZE - 2) { throw new RuntimeException("Not enough memory."); } reset(); for (; dp < program.length(); dp++) { memory[dp] = program.charAt(dp); } border = dp; dp += 1; } public void execute(String program) { load(program); char instruction = memory[ip]; while (instruction != 0) { switch (instruction) { case '>': dp++; if (dp == MEMORY_SIZE) { throw new RuntimeException("Out of memory."); } break; case '<': dp--; if (dp == border) { throw new RuntimeException("Invalid data pointer."); } break; case '+': memory[dp]++; break; case '-': memory[dp]--; break; case '.': System.out.print(memory[dp]); break; case ',': try { memory[dp] = (char) System.in.read(); } catch (IOException e) { throw new RuntimeException(e); } break; case '[': if (memory[dp] == 0) { skipLoop(); } break; case ']': if (memory[dp] != 0) { loop(); } break; default: throw new RuntimeException("Unknown instruction."); } instruction = memory[++ip]; } } private void skipLoop() { int loopCount = 0; while (memory[ip] != 0) { if (memory[ip] == '[') { loopCount++; } else if (memory[ip] == ']') { loopCount--; if (loopCount == 0) { return; } } ip++; } if (memory[ip] == 0) { throw new RuntimeException("Unable to find a matching ']'."); } } private void loop() { int loopCount = 0; while (ip >= 0) { if (memory[ip] == ']') { loopCount++; } else if (memory[ip] == '[') { loopCount--; if (loopCount == 0) { return; } } ip--; } if (ip == -1) { throw new RuntimeException("Unable to find a matching '['."); } } public static void main(String[] args) { Interpreter interpreter = new Interpreter(); interpreter.execute(">++++++++[-<+++++++++>]<.>>+>-[+]++>++>+++[>[->+++<<+++>]<<]>-----.>->+++..+++.>-.<<+[>[+>+]>>]<--------------.>>.+++.------.--------.>+.>+."); } }
<?php function brainfuck_interpret(&$s, &$_s, &$d, &$_d, &$i, &$_i, &$o) { do { switch($s[$_s]) { case '+': $d[$_d] = chr(ord($d[$_d]) + 1); break; case '-': $d[$_d] = chr(ord($d[$_d]) - 1); break; case '>': $_d++; if(!isset($d[$_d])) $d[$_d] = chr(0); break; case '<': $_d--; break; case '.': $o .= $d[$_d]; break; case ',': $d[$_d] = $_i==strlen($i) ? chr(0) : $i[$_i++]; break; case '[': if((int)ord($d[$_d]) == 0) { $brackets = 1; while($brackets && $_s++ < strlen($s)) { if($s[$_s] == '[') $brackets++; else if($s[$_s] == ']') $brackets--; } } else { $pos = $_s++-1; if(brainfuck_interpret($s, $_s, $d, $_d, $i, $_i, $o)) $_s = $pos; } break; case ']': return ((int)ord($d[$_d]) != 0); } } while(++$_s < strlen($s)); } function brainfuck($source, $input='') { $data = array(); $data[0] = chr(0); $data_index = 0; $source_index = 0; $input_index = 0; $output = ''; brainfuck_interpret($source, $source_index, $data, $data_index, $input, $input_index, $output); return $output; } $code = " >++++++++[<+++++++++>-]<.>>+>+>++>[-]+<[>[->+<<++++>]<<]>.+++++++..+++.> >+++++++.<<<[[-]<[-]>]<+++++++++++++++.>>.+++.------.--------.>>+.>++++. "; $inp = '123'; print brainfuck( $code, $inp );
Produce a functionally identical PHP code for the snippet given in Java.
public class ScriptedMain { public static int meaningOfLife() { return 42; } public static void main(String[] args) { System.out.println("Main: The meaning of life is " + meaningOfLife()); } }
<?php function meaning_of_life() { return 42; } function main($args) { echo "Main: The meaning of life is " . meaning_of_life() . "\n"; } if (preg_match("/scriptedmain/", $_SERVER["SCRIPT_NAME"])) { main($argv); } ?>
Ensure the translated PHP code behaves exactly like the original Java snippet.
public class ScriptedMain { public static int meaningOfLife() { return 42; } public static void main(String[] args) { System.out.println("Main: The meaning of life is " + meaningOfLife()); } }
<?php function meaning_of_life() { return 42; } function main($args) { echo "Main: The meaning of life is " . meaning_of_life() . "\n"; } if (preg_match("/scriptedmain/", $_SERVER["SCRIPT_NAME"])) { main($argv); } ?>
Preserve the algorithm and functionality while converting the code from Java to PHP.
public class ScriptedMain { public static int meaningOfLife() { return 42; } public static void main(String[] args) { System.out.println("Main: The meaning of life is " + meaningOfLife()); } }
<?php function meaning_of_life() { return 42; } function main($args) { echo "Main: The meaning of life is " . meaning_of_life() . "\n"; } if (preg_match("/scriptedmain/", $_SERVER["SCRIPT_NAME"])) { main($argv); } ?>
Write a version of this Java function in PHP with identical behavior.
public class ScriptedMain { public static int meaningOfLife() { return 42; } public static void main(String[] args) { System.out.println("Main: The meaning of life is " + meaningOfLife()); } }
<?php function meaning_of_life() { return 42; } function main($args) { echo "Main: The meaning of life is " . meaning_of_life() . "\n"; } if (preg_match("/scriptedmain/", $_SERVER["SCRIPT_NAME"])) { main($argv); } ?>
Port the provided Java code into PHP while preserving the original functionality.
package rosetta; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; public class UnixLS { public static void main(String[] args) throws IOException { Files.list(Path.of("")).sorted().forEach(System.out::println); } }
<?php foreach(scandir('.') as $fileName){ echo $fileName."\n"; }
Produce a functionally identical PHP code for the snippet given in Java.
package rosetta; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; public class UnixLS { public static void main(String[] args) throws IOException { Files.list(Path.of("")).sorted().forEach(System.out::println); } }
<?php foreach(scandir('.') as $fileName){ echo $fileName."\n"; }
Transform the following Java implementation into PHP, maintaining the same output and logic.
import java.util.LinkedList; import java.util.List; public class MTF{ public static List<Integer> encode(String msg, String symTable){ List<Integer> output = new LinkedList<Integer>(); StringBuilder s = new StringBuilder(symTable); for(char c : msg.toCharArray()){ int idx = s.indexOf("" + c); output.add(idx); s = s.deleteCharAt(idx).insert(0, c); } return output; } public static String decode(List<Integer> idxs, String symTable){ StringBuilder output = new StringBuilder(); StringBuilder s = new StringBuilder(symTable); for(int idx : idxs){ char c = s.charAt(idx); output = output.append(c); s = s.deleteCharAt(idx).insert(0, c); } return output.toString(); } private static void test(String toEncode, String symTable){ List<Integer> encoded = encode(toEncode, symTable); System.out.println(toEncode + ": " + encoded); String decoded = decode(encoded, symTable); System.out.println((toEncode.equals(decoded) ? "" : "in") + "correctly decoded to " + decoded); } public static void main(String[] args){ String symTable = "abcdefghijklmnopqrstuvwxyz"; test("broood", symTable); test("bananaaa", symTable); test("hiphophiphop", symTable); } }
<?php function symbolTable() { $symbol = array(); for ($c = ord('a') ; $c <= ord('z') ; $c++) { $symbol[$c - ord('a')] = chr($c); } return $symbol; } function mtfEncode($original, $symbol) { $encoded = array(); for ($i = 0 ; $i < strlen($original) ; $i++) { $char = $original[$i]; $position = array_search($char, $symbol); $encoded[] = $position; $mtf = $symbol[$position]; unset($symbol[$position]); array_unshift($symbol, $mtf); } return $encoded; } function mtfDecode($encoded, $symbol) { $decoded = ''; foreach ($encoded AS $position) { $char = $symbol[$position]; $decoded .= $char; unset($symbol[$position]); array_unshift($symbol, $char); } return $decoded; } foreach (array('broood', 'bananaaa', 'hiphophiphop') AS $original) { $encoded = mtfEncode($original, symbolTable()); $decoded = mtfDecode($encoded, symbolTable()); echo $original, ' -> [', implode(',', $encoded), ']', ' -> ', $decoded, ' : ', ($original === $decoded ? 'OK' : 'Error'), PHP_EOL; }
Rewrite this program in PHP while keeping its functionality equivalent to the Java version.
import java.util.LinkedList; import java.util.List; public class MTF{ public static List<Integer> encode(String msg, String symTable){ List<Integer> output = new LinkedList<Integer>(); StringBuilder s = new StringBuilder(symTable); for(char c : msg.toCharArray()){ int idx = s.indexOf("" + c); output.add(idx); s = s.deleteCharAt(idx).insert(0, c); } return output; } public static String decode(List<Integer> idxs, String symTable){ StringBuilder output = new StringBuilder(); StringBuilder s = new StringBuilder(symTable); for(int idx : idxs){ char c = s.charAt(idx); output = output.append(c); s = s.deleteCharAt(idx).insert(0, c); } return output.toString(); } private static void test(String toEncode, String symTable){ List<Integer> encoded = encode(toEncode, symTable); System.out.println(toEncode + ": " + encoded); String decoded = decode(encoded, symTable); System.out.println((toEncode.equals(decoded) ? "" : "in") + "correctly decoded to " + decoded); } public static void main(String[] args){ String symTable = "abcdefghijklmnopqrstuvwxyz"; test("broood", symTable); test("bananaaa", symTable); test("hiphophiphop", symTable); } }
<?php function symbolTable() { $symbol = array(); for ($c = ord('a') ; $c <= ord('z') ; $c++) { $symbol[$c - ord('a')] = chr($c); } return $symbol; } function mtfEncode($original, $symbol) { $encoded = array(); for ($i = 0 ; $i < strlen($original) ; $i++) { $char = $original[$i]; $position = array_search($char, $symbol); $encoded[] = $position; $mtf = $symbol[$position]; unset($symbol[$position]); array_unshift($symbol, $mtf); } return $encoded; } function mtfDecode($encoded, $symbol) { $decoded = ''; foreach ($encoded AS $position) { $char = $symbol[$position]; $decoded .= $char; unset($symbol[$position]); array_unshift($symbol, $char); } return $decoded; } foreach (array('broood', 'bananaaa', 'hiphophiphop') AS $original) { $encoded = mtfEncode($original, symbolTable()); $decoded = mtfDecode($encoded, symbolTable()); echo $original, ' -> [', implode(',', $encoded), ']', ' -> ', $decoded, ' : ', ($original === $decoded ? 'OK' : 'Error'), PHP_EOL; }
Preserve the algorithm and functionality while converting the code from Java to PHP.
import java.io.IOException; import org.apache.directory.api.ldap.model.cursor.CursorException; import org.apache.directory.api.ldap.model.cursor.EntryCursor; import org.apache.directory.api.ldap.model.entry.Entry; import org.apache.directory.api.ldap.model.exception.LdapException; import org.apache.directory.api.ldap.model.message.SearchScope; import org.apache.directory.ldap.client.api.LdapConnection; import org.apache.directory.ldap.client.api.LdapNetworkConnection; public class LdapSearchDemo { public static void main(String[] args) throws IOException, LdapException, CursorException { new LdapSearchDemo().demonstrateSearch(); } private void demonstrateSearch() throws IOException, LdapException, CursorException { try (LdapConnection conn = new LdapNetworkConnection("localhost", 11389)) { conn.bind("uid=admin,ou=system", "********"); search(conn, "*mil*"); conn.unBind(); } } private void search(LdapConnection connection, String uid) throws LdapException, CursorException { String baseDn = "ou=users,o=mojo"; String filter = "(&(objectClass=person)(&(uid=" + uid + ")))"; SearchScope scope = SearchScope.SUBTREE; String[] attributes = {"dn", "cn", "sn", "uid"}; int ksearch = 0; EntryCursor cursor = connection.search(baseDn, filter, scope, attributes); while (cursor.next()) { ksearch++; Entry entry = cursor.get(); System.out.printf("Search entry %d = %s%n", ksearch, entry); } } }
<?php $l = ldap_connect('ldap.example.com'); ldap_set_option($l, LDAP_OPT_PROTOCOL_VERSION, 3); ldap_set_option($l, LDAP_OPT_REFERRALS, false); $bind = ldap_bind($l, 'me@example.com', 'password'); $base = 'dc=example, dc=com'; $criteria = '(&(objectClass=user)(sAMAccountName=username))'; $attributes = array('displayName', 'company'); $search = ldap_search($l, $base, $criteria, $attributes); $entries = ldap_get_entries($l, $search); var_dump($entries);
Write the same code in PHP as shown below in Java.
import java.io.IOException; import org.apache.directory.api.ldap.model.cursor.CursorException; import org.apache.directory.api.ldap.model.cursor.EntryCursor; import org.apache.directory.api.ldap.model.entry.Entry; import org.apache.directory.api.ldap.model.exception.LdapException; import org.apache.directory.api.ldap.model.message.SearchScope; import org.apache.directory.ldap.client.api.LdapConnection; import org.apache.directory.ldap.client.api.LdapNetworkConnection; public class LdapSearchDemo { public static void main(String[] args) throws IOException, LdapException, CursorException { new LdapSearchDemo().demonstrateSearch(); } private void demonstrateSearch() throws IOException, LdapException, CursorException { try (LdapConnection conn = new LdapNetworkConnection("localhost", 11389)) { conn.bind("uid=admin,ou=system", "********"); search(conn, "*mil*"); conn.unBind(); } } private void search(LdapConnection connection, String uid) throws LdapException, CursorException { String baseDn = "ou=users,o=mojo"; String filter = "(&(objectClass=person)(&(uid=" + uid + ")))"; SearchScope scope = SearchScope.SUBTREE; String[] attributes = {"dn", "cn", "sn", "uid"}; int ksearch = 0; EntryCursor cursor = connection.search(baseDn, filter, scope, attributes); while (cursor.next()) { ksearch++; Entry entry = cursor.get(); System.out.printf("Search entry %d = %s%n", ksearch, entry); } } }
<?php $l = ldap_connect('ldap.example.com'); ldap_set_option($l, LDAP_OPT_PROTOCOL_VERSION, 3); ldap_set_option($l, LDAP_OPT_REFERRALS, false); $bind = ldap_bind($l, 'me@example.com', 'password'); $base = 'dc=example, dc=com'; $criteria = '(&(objectClass=user)(sAMAccountName=username))'; $attributes = array('displayName', 'company'); $search = ldap_search($l, $base, $criteria, $attributes); $entries = ldap_get_entries($l, $search); var_dump($entries);
Rewrite the snippet below in PHP so it works the same as the original Java code.
import java.util.Scanner; import java.io.*; public class Program { public static void main(String[] args) { try { Process p = Runtime.getRuntime().exec("cmd /C dir"); Scanner sc = new Scanner(p.getInputStream()); while (sc.hasNext()) System.out.println(sc.nextLine()); } catch (IOException e) { System.out.println(e.getMessage()); } } }
@exec($command,$output); echo nl2br($output);
Ensure the translated PHP code behaves exactly like the original Java snippet.
import java.util.Scanner; import java.io.*; public class Program { public static void main(String[] args) { try { Process p = Runtime.getRuntime().exec("cmd /C dir"); Scanner sc = new Scanner(p.getInputStream()); while (sc.hasNext()) System.out.println(sc.nextLine()); } catch (IOException e) { System.out.println(e.getMessage()); } } }
@exec($command,$output); echo nl2br($output);
Maintain the same structure and functionality when rewriting this code in PHP.
import static javax.xml.XMLConstants.W3C_XML_SCHEMA_NS_URI; import java.net.MalformedURLException; import java.net.URL; import javax.xml.transform.stream.StreamSource; import javax.xml.validation.SchemaFactory; import javax.xml.validation.Validator; import javax.xml.ws.Holder; import org.xml.sax.ErrorHandler; import org.xml.sax.SAXException; import org.xml.sax.SAXParseException; public class XmlValidation { public static void main(String... args) throws MalformedURLException { URL schemaLocation = new URL("http: URL documentLocation = new URL("http: if (validate(schemaLocation, documentLocation)) { System.out.println("document is valid"); } else { System.out.println("document is invalid"); } } public static boolean minimalValidate(URL schemaLocation, URL documentLocation) { SchemaFactory factory = SchemaFactory.newInstance(W3C_XML_SCHEMA_NS_URI); try { Validator validator = factory.newSchema(schemaLocation).newValidator(); validator.validate(new StreamSource(documentLocation.toString())); return true; } catch (Exception e) { return false; } } public static boolean validate(URL schemaLocation, URL documentLocation) { SchemaFactory factory = SchemaFactory.newInstance(W3C_XML_SCHEMA_NS_URI); final Holder<Boolean> valid = new Holder<>(true); try { Validator validator = factory.newSchema(schemaLocation).newValidator(); validator.setErrorHandler(new ErrorHandler(){ @Override public void warning(SAXParseException exception) { System.out.println("warning: " + exception.getMessage()); } @Override public void error(SAXParseException exception) { System.out.println("error: " + exception.getMessage()); valid.value = false; } @Override public void fatalError(SAXParseException exception) throws SAXException { System.out.println("fatal error: " + exception.getMessage()); throw exception; }}); validator.validate(new StreamSource(documentLocation.toString())); return valid.value; } catch (SAXException e) { return false; } catch (Exception e) { System.err.println(e); return false; } } }
libxml_use_internal_errors(true); $xml = new DOMDocument(); $xml->load('shiporder.xml'); if (!$xml->schemaValidate('shiporder.xsd')) { var_dump(libxml_get_errors()); exit; } else { echo 'success'; }
Translate this program into PHP but keep the logic exactly as in Java.
import static javax.xml.XMLConstants.W3C_XML_SCHEMA_NS_URI; import java.net.MalformedURLException; import java.net.URL; import javax.xml.transform.stream.StreamSource; import javax.xml.validation.SchemaFactory; import javax.xml.validation.Validator; import javax.xml.ws.Holder; import org.xml.sax.ErrorHandler; import org.xml.sax.SAXException; import org.xml.sax.SAXParseException; public class XmlValidation { public static void main(String... args) throws MalformedURLException { URL schemaLocation = new URL("http: URL documentLocation = new URL("http: if (validate(schemaLocation, documentLocation)) { System.out.println("document is valid"); } else { System.out.println("document is invalid"); } } public static boolean minimalValidate(URL schemaLocation, URL documentLocation) { SchemaFactory factory = SchemaFactory.newInstance(W3C_XML_SCHEMA_NS_URI); try { Validator validator = factory.newSchema(schemaLocation).newValidator(); validator.validate(new StreamSource(documentLocation.toString())); return true; } catch (Exception e) { return false; } } public static boolean validate(URL schemaLocation, URL documentLocation) { SchemaFactory factory = SchemaFactory.newInstance(W3C_XML_SCHEMA_NS_URI); final Holder<Boolean> valid = new Holder<>(true); try { Validator validator = factory.newSchema(schemaLocation).newValidator(); validator.setErrorHandler(new ErrorHandler(){ @Override public void warning(SAXParseException exception) { System.out.println("warning: " + exception.getMessage()); } @Override public void error(SAXParseException exception) { System.out.println("error: " + exception.getMessage()); valid.value = false; } @Override public void fatalError(SAXParseException exception) throws SAXException { System.out.println("fatal error: " + exception.getMessage()); throw exception; }}); validator.validate(new StreamSource(documentLocation.toString())); return valid.value; } catch (SAXException e) { return false; } catch (Exception e) { System.err.println(e); return false; } } }
libxml_use_internal_errors(true); $xml = new DOMDocument(); $xml->load('shiporder.xml'); if (!$xml->schemaValidate('shiporder.xsd')) { var_dump(libxml_get_errors()); exit; } else { echo 'success'; }
Write a version of this Java function in PHP with identical behavior.
import java.util.*; public class LIS { public static <E extends Comparable<? super E>> List<E> lis(List<E> n) { List<Node<E>> pileTops = new ArrayList<Node<E>>(); for (E x : n) { Node<E> node = new Node<E>(); node.value = x; int i = Collections.binarySearch(pileTops, node); if (i < 0) i = ~i; if (i != 0) node.pointer = pileTops.get(i-1); if (i != pileTops.size()) pileTops.set(i, node); else pileTops.add(node); } List<E> result = new ArrayList<E>(); for (Node<E> node = pileTops.size() == 0 ? null : pileTops.get(pileTops.size()-1); node != null; node = node.pointer) result.add(node.value); Collections.reverse(result); return result; } private static class Node<E extends Comparable<? super E>> implements Comparable<Node<E>> { public E value; public Node<E> pointer; public int compareTo(Node<E> y) { return value.compareTo(y.value); } } public static void main(String[] args) { List<Integer> d = Arrays.asList(3,2,6,4,5,1); System.out.printf("an L.I.S. of %s is %s\n", d, lis(d)); d = Arrays.asList(0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15); System.out.printf("an L.I.S. of %s is %s\n", d, lis(d)); } }
<?php class Node { public $val; public $back = NULL; } function lis($n) { $pileTops = array(); foreach ($n as $x) { $low = 0; $high = count($pileTops)-1; while ($low <= $high) { $mid = (int)(($low + $high) / 2); if ($pileTops[$mid]->val >= $x) $high = $mid - 1; else $low = $mid + 1; } $i = $low; $node = new Node(); $node->val = $x; if ($i != 0) $node->back = $pileTops[$i-1]; $pileTops[$i] = $node; } $result = array(); for ($node = count($pileTops) ? $pileTops[count($pileTops)-1] : NULL; $node != NULL; $node = $node->back) $result[] = $node->val; return array_reverse($result); } print_r(lis(array(3, 2, 6, 4, 5, 1))); print_r(lis(array(0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15))); ?>
Convert this Java snippet to PHP and keep its semantics consistent.
import java.util.*; public class LIS { public static <E extends Comparable<? super E>> List<E> lis(List<E> n) { List<Node<E>> pileTops = new ArrayList<Node<E>>(); for (E x : n) { Node<E> node = new Node<E>(); node.value = x; int i = Collections.binarySearch(pileTops, node); if (i < 0) i = ~i; if (i != 0) node.pointer = pileTops.get(i-1); if (i != pileTops.size()) pileTops.set(i, node); else pileTops.add(node); } List<E> result = new ArrayList<E>(); for (Node<E> node = pileTops.size() == 0 ? null : pileTops.get(pileTops.size()-1); node != null; node = node.pointer) result.add(node.value); Collections.reverse(result); return result; } private static class Node<E extends Comparable<? super E>> implements Comparable<Node<E>> { public E value; public Node<E> pointer; public int compareTo(Node<E> y) { return value.compareTo(y.value); } } public static void main(String[] args) { List<Integer> d = Arrays.asList(3,2,6,4,5,1); System.out.printf("an L.I.S. of %s is %s\n", d, lis(d)); d = Arrays.asList(0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15); System.out.printf("an L.I.S. of %s is %s\n", d, lis(d)); } }
<?php class Node { public $val; public $back = NULL; } function lis($n) { $pileTops = array(); foreach ($n as $x) { $low = 0; $high = count($pileTops)-1; while ($low <= $high) { $mid = (int)(($low + $high) / 2); if ($pileTops[$mid]->val >= $x) $high = $mid - 1; else $low = $mid + 1; } $i = $low; $node = new Node(); $node->val = $x; if ($i != 0) $node->back = $pileTops[$i-1]; $pileTops[$i] = $node; } $result = array(); for ($node = count($pileTops) ? $pileTops[count($pileTops)-1] : NULL; $node != NULL; $node = $node->back) $result[] = $node->val; return array_reverse($result); } print_r(lis(array(3, 2, 6, 4, 5, 1))); print_r(lis(array(0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15))); ?>
Rewrite this program in PHP while keeping its functionality equivalent to the Java version.
public class BraceExpansion { public static void main(String[] args) { for (String s : new String[]{"It{{em,alic}iz,erat}e{d,}, please.", "~/{Downloads,Pictures}/*.{jpg,gif,png}", "{,{,gotta have{ ,\\, again\\, }}more }cowbell!", "{}} some }{,{\\\\{ edge, edge} \\,}{ cases, {here} \\\\\\\\\\}"}) { System.out.println(); expand(s); } } public static void expand(String s) { expandR("", s, ""); } private static void expandR(String pre, String s, String suf) { int i1 = -1, i2 = 0; String noEscape = s.replaceAll("([\\\\]{2}|[\\\\][,}{])", " "); StringBuilder sb = null; outer: while ((i1 = noEscape.indexOf('{', i1 + 1)) != -1) { i2 = i1 + 1; sb = new StringBuilder(s); for (int depth = 1; i2 < s.length() && depth > 0; i2++) { char c = noEscape.charAt(i2); depth = (c == '{') ? ++depth : depth; depth = (c == '}') ? --depth : depth; if (c == ',' && depth == 1) { sb.setCharAt(i2, '\u0000'); } else if (c == '}' && depth == 0 && sb.indexOf("\u0000") != -1) break outer; } } if (i1 == -1) { if (suf.length() > 0) expandR(pre + s, suf, ""); else System.out.printf("%s%s%s%n", pre, s, suf); } else { for (String m : sb.substring(i1 + 1, i2).split("\u0000", -1)) expandR(pre + s.substring(0, i1), m, s.substring(i2 + 1) + suf); } } }
function getitem($s,$depth=0) { $out = ['']; while ($s) { $c = $s[0]; if ($depth && ($c == ',' || $c == '}')) { return [$out, $s]; } if ($c == '{') { $x = getgroup(substr($s, 1), $depth + 1); if($x) { $tmp = []; foreach($out as $a) { foreach($x[0] as $b) { $tmp[] = $a . $b; } } $out = $tmp; $s = $x[1]; continue; } } if ($c == '\\' && strlen($s) > 1) { list($s, $c) = [substr($s, 1), ($c . $s[1])]; } $tmp = []; foreach($out as $a) { $tmp[] = $a . $c; } $out = $tmp; $s = substr($s, 1); } return [$out, $s]; } function getgroup($s,$depth) { list($out, $comma) = [[], false]; while ($s) { list($g, $s) = getitem($s, $depth); if (!$s) { break; } $out = array_merge($out, $g); if ($s[0] == '}') { if ($comma) { return [$out, substr($s, 1)]; } $tmp = []; foreach($out as $a) { $tmp[] = '{' . $a . '}'; } return [$tmp, substr($s, 1)]; } if ($s[0] == ',') { list($comma, $s) = [true, substr($s, 1)]; } } return null; } $lines = <<< 'END' ~/{Downloads,Pictures}/*.{jpg,gif,png} It{{em,alic}iz,erat}e{d,}, please. {,{,gotta have{ ,\, again\, }}more }cowbell! {}} some }{,{\\{ edge, edge} \,}{ cases, {here} \\\\\} END; foreach( explode("\n", $lines) as $line ) { printf("\n%s\n", $line); foreach( getitem($line)[0] as $expansion ) { printf(" %s\n", $expansion); } }
Convert the following code from Java to PHP, ensuring the logic remains intact.
public class BraceExpansion { public static void main(String[] args) { for (String s : new String[]{"It{{em,alic}iz,erat}e{d,}, please.", "~/{Downloads,Pictures}/*.{jpg,gif,png}", "{,{,gotta have{ ,\\, again\\, }}more }cowbell!", "{}} some }{,{\\\\{ edge, edge} \\,}{ cases, {here} \\\\\\\\\\}"}) { System.out.println(); expand(s); } } public static void expand(String s) { expandR("", s, ""); } private static void expandR(String pre, String s, String suf) { int i1 = -1, i2 = 0; String noEscape = s.replaceAll("([\\\\]{2}|[\\\\][,}{])", " "); StringBuilder sb = null; outer: while ((i1 = noEscape.indexOf('{', i1 + 1)) != -1) { i2 = i1 + 1; sb = new StringBuilder(s); for (int depth = 1; i2 < s.length() && depth > 0; i2++) { char c = noEscape.charAt(i2); depth = (c == '{') ? ++depth : depth; depth = (c == '}') ? --depth : depth; if (c == ',' && depth == 1) { sb.setCharAt(i2, '\u0000'); } else if (c == '}' && depth == 0 && sb.indexOf("\u0000") != -1) break outer; } } if (i1 == -1) { if (suf.length() > 0) expandR(pre + s, suf, ""); else System.out.printf("%s%s%s%n", pre, s, suf); } else { for (String m : sb.substring(i1 + 1, i2).split("\u0000", -1)) expandR(pre + s.substring(0, i1), m, s.substring(i2 + 1) + suf); } } }
function getitem($s,$depth=0) { $out = ['']; while ($s) { $c = $s[0]; if ($depth && ($c == ',' || $c == '}')) { return [$out, $s]; } if ($c == '{') { $x = getgroup(substr($s, 1), $depth + 1); if($x) { $tmp = []; foreach($out as $a) { foreach($x[0] as $b) { $tmp[] = $a . $b; } } $out = $tmp; $s = $x[1]; continue; } } if ($c == '\\' && strlen($s) > 1) { list($s, $c) = [substr($s, 1), ($c . $s[1])]; } $tmp = []; foreach($out as $a) { $tmp[] = $a . $c; } $out = $tmp; $s = substr($s, 1); } return [$out, $s]; } function getgroup($s,$depth) { list($out, $comma) = [[], false]; while ($s) { list($g, $s) = getitem($s, $depth); if (!$s) { break; } $out = array_merge($out, $g); if ($s[0] == '}') { if ($comma) { return [$out, substr($s, 1)]; } $tmp = []; foreach($out as $a) { $tmp[] = '{' . $a . '}'; } return [$tmp, substr($s, 1)]; } if ($s[0] == ',') { list($comma, $s) = [true, substr($s, 1)]; } } return null; } $lines = <<< 'END' ~/{Downloads,Pictures}/*.{jpg,gif,png} It{{em,alic}iz,erat}e{d,}, please. {,{,gotta have{ ,\, again\, }}more }cowbell! {}} some }{,{\\{ edge, edge} \,}{ cases, {here} \\\\\} END; foreach( explode("\n", $lines) as $line ) { printf("\n%s\n", $line); foreach( getitem($line)[0] as $expansion ) { printf(" %s\n", $expansion); } }
Maintain the same structure and functionality when rewriting this code in PHP.
public class SelfDescribingNumbers{ public static boolean isSelfDescribing(int a){ String s = Integer.toString(a); for(int i = 0; i < s.length(); i++){ String s0 = s.charAt(i) + ""; int b = Integer.parseInt(s0); int count = 0; for(int j = 0; j < s.length(); j++){ int temp = Integer.parseInt(s.charAt(j) + ""); if(temp == i){ count++; } if (count > b) return false; } if(count != b) return false; } return true; } public static void main(String[] args){ for(int i = 0; i < 100000000; i++){ if(isSelfDescribing(i)){ System.out.println(i); } } } }
<?php function is_describing($number) { foreach (str_split((int) $number) as $place => $value) { if (substr_count($number, $place) != $value) { return false; } } return true; } for ($i = 0; $i <= 50000000; $i += 10) { if (is_describing($i)) { echo $i . PHP_EOL; } } ?>
Write the same code in PHP as shown below in Java.
public class SelfDescribingNumbers{ public static boolean isSelfDescribing(int a){ String s = Integer.toString(a); for(int i = 0; i < s.length(); i++){ String s0 = s.charAt(i) + ""; int b = Integer.parseInt(s0); int count = 0; for(int j = 0; j < s.length(); j++){ int temp = Integer.parseInt(s.charAt(j) + ""); if(temp == i){ count++; } if (count > b) return false; } if(count != b) return false; } return true; } public static void main(String[] args){ for(int i = 0; i < 100000000; i++){ if(isSelfDescribing(i)){ System.out.println(i); } } } }
<?php function is_describing($number) { foreach (str_split((int) $number) as $place => $value) { if (substr_count($number, $place) != $value) { return false; } } return true; } for ($i = 0; $i <= 50000000; $i += 10) { if (is_describing($i)) { echo $i . PHP_EOL; } } ?>
Ensure the translated PHP code behaves exactly like the original Java snippet.
System.out.println(BigInteger.valueOf(42).modInverse(BigInteger.valueOf(2017)));
<?php function invmod($a,$n){ if ($n < 0) $n = -$n; if ($a < 0) $a = $n - (-$a % $n); $t = 0; $nt = 1; $r = $n; $nr = $a % $n; while ($nr != 0) { $quot= intval($r/$nr); $tmp = $nt; $nt = $t - $quot*$nt; $t = $tmp; $tmp = $nr; $nr = $r - $quot*$nr; $r = $tmp; } if ($r > 1) return -1; if ($t < 0) $t += $n; return $t; } printf("%d\n", invmod(42, 2017)); ?>
Ensure the translated PHP code behaves exactly like the original Java snippet.
System.out.println(BigInteger.valueOf(42).modInverse(BigInteger.valueOf(2017)));
<?php function invmod($a,$n){ if ($n < 0) $n = -$n; if ($a < 0) $a = $n - (-$a % $n); $t = 0; $nt = 1; $r = $n; $nr = $a % $n; while ($nr != 0) { $quot= intval($r/$nr); $tmp = $nt; $nt = $t - $quot*$nt; $t = $tmp; $tmp = $nr; $nr = $r - $quot*$nr; $r = $tmp; } if ($r > 1) return -1; if ($t < 0) $t += $n; return $t; } printf("%d\n", invmod(42, 2017)); ?>
Convert this Java block to PHP, preserving its control flow and logic.
import java.io.IOException; import java.io.PrintWriter; import java.net.ServerSocket; import java.net.Socket; public class HelloWorld{ public static void main(String[] args) throws IOException{ ServerSocket listener = new ServerSocket(8080); while(true){ Socket sock = listener.accept(); new PrintWriter(sock.getOutputStream(), true). println("Goodbye, World!"); sock.close(); } } }
<?php $socket = socket_create(AF_INET, SOCK_STREAM, 0) or die('Failed to create socket!'); socket_bind($socket, 0, 8080); socket_listen($socket); $msg = '<html><head><title>Goodbye, world!</title></head><body>Goodbye, world!</body></html>'; for (;;) { if ($client = @socket_accept($socket)) { socket_write($client, "HTTP/1.1 200 OK\r\n" . "Content-length: " . strlen($msg) . "\r\n" . "Content-Type: text/html; charset=UTF-8\r\n\r\n" . $msg); } else usleep(100000); // limits CPU usage by sleeping after doing every request } ?>
Write the same algorithm in PHP as shown in this Java implementation.
import java.io.IOException; import java.io.PrintWriter; import java.net.ServerSocket; import java.net.Socket; public class HelloWorld{ public static void main(String[] args) throws IOException{ ServerSocket listener = new ServerSocket(8080); while(true){ Socket sock = listener.accept(); new PrintWriter(sock.getOutputStream(), true). println("Goodbye, World!"); sock.close(); } } }
<?php $socket = socket_create(AF_INET, SOCK_STREAM, 0) or die('Failed to create socket!'); socket_bind($socket, 0, 8080); socket_listen($socket); $msg = '<html><head><title>Goodbye, world!</title></head><body>Goodbye, world!</body></html>'; for (;;) { if ($client = @socket_accept($socket)) { socket_write($client, "HTTP/1.1 200 OK\r\n" . "Content-length: " . strlen($msg) . "\r\n" . "Content-Type: text/html; charset=UTF-8\r\n\r\n" . $msg); } else usleep(100000); // limits CPU usage by sleeping after doing every request } ?>
Keep all operations the same but rewrite the snippet in PHP.
import java.io.IOException; import org.apache.directory.api.ldap.model.exception.LdapException; import org.apache.directory.ldap.client.api.LdapConnection; import org.apache.directory.ldap.client.api.LdapNetworkConnection; public class LdapConnectionDemo { public static void main(String[] args) throws LdapException, IOException { try (LdapConnection connection = new LdapNetworkConnection("localhost", 10389)) { connection.bind(); connection.unBind(); } } }
<?php $ldap = ldap_connect($hostname, $port); $success = ldap_bind($ldap, $username, $password);
Rewrite this program in PHP while keeping its functionality equivalent to the Java version.
import java.io.IOException; import org.apache.directory.api.ldap.model.exception.LdapException; import org.apache.directory.ldap.client.api.LdapConnection; import org.apache.directory.ldap.client.api.LdapNetworkConnection; public class LdapConnectionDemo { public static void main(String[] args) throws LdapException, IOException { try (LdapConnection connection = new LdapNetworkConnection("localhost", 10389)) { connection.bind(); connection.unBind(); } } }
<?php $ldap = ldap_connect($hostname, $port); $success = ldap_bind($ldap, $username, $password);
Translate the given Java code snippet into PHP without altering its behavior.
import java.io.*; import java.util.*; import java.util.regex.*; public class UpdateConfig { public static void main(String[] args) { if (args[0] == null) { System.out.println("filename required"); } else if (readConfig(args[0])) { enableOption("seedsremoved"); disableOption("needspeeling"); setOption("numberofbananas", "1024"); addOption("numberofstrawberries", "62000"); store(); } } private enum EntryType { EMPTY, ENABLED, DISABLED, COMMENT } private static class Entry { EntryType type; String name, value; Entry(EntryType t, String n, String v) { type = t; name = n; value = v; } } private static Map<String, Entry> entries = new LinkedHashMap<>(); private static String path; private static boolean readConfig(String p) { path = p; File f = new File(path); if (!f.exists() || f.isDirectory()) return false; String regexString = "^(;*)\\s*([A-Za-z0-9]+)\\s*([A-Za-z0-9]*)"; Pattern regex = Pattern.compile(regexString); try (Scanner sc = new Scanner(new FileReader(f))){ int emptyLines = 0; String line; while (sc.hasNext()) { line = sc.nextLine().trim(); if (line.isEmpty()) { addOption("" + emptyLines++, null, EntryType.EMPTY); } else if (line.charAt(0) == '#') { entries.put(line, new Entry(EntryType.COMMENT, line, null)); } else { line = line.replaceAll("[^a-zA-Z0-9\\x20;]", ""); Matcher m = regex.matcher(line); if (m.find() && !m.group(2).isEmpty()) { EntryType t = EntryType.ENABLED; if (!m.group(1).isEmpty()) t = EntryType.DISABLED; addOption(m.group(2), m.group(3), t); } } } } catch (IOException e) { System.out.println(e); } return true; } private static void addOption(String name, String value) { addOption(name, value, EntryType.ENABLED); } private static void addOption(String name, String value, EntryType t) { name = name.toUpperCase(); entries.put(name, new Entry(t, name, value)); } private static void enableOption(String name) { Entry e = entries.get(name.toUpperCase()); if (e != null) e.type = EntryType.ENABLED; } private static void disableOption(String name) { Entry e = entries.get(name.toUpperCase()); if (e != null) e.type = EntryType.DISABLED; } private static void setOption(String name, String value) { Entry e = entries.get(name.toUpperCase()); if (e != null) e.value = value; } private static void store() { try (PrintWriter pw = new PrintWriter(path)) { for (Entry e : entries.values()) { switch (e.type) { case EMPTY: pw.println(); break; case ENABLED: pw.format("%s %s%n", e.name, e.value); break; case DISABLED: pw.format("; %s %s%n", e.name, e.value); break; case COMMENT: pw.println(e.name); break; default: break; } } if (pw.checkError()) { throw new IOException("writing to file failed"); } } catch (IOException e) { System.out.println(e); } } }
<?php $conf = file_get_contents('update-conf-file.txt'); $conf = preg_replace('/^(needspeeling)(|\s*\S*)$/mi', '; $1', $conf); $conf = preg_replace('/^;?\s*(seedsremoved)/mi', '$1', $conf); $conf = preg_replace('/^(numberofbananas)(|\s*\S*)$/mi', '$1 1024', $conf); if (preg_match('/^;?\s*(numberofstrawberries)/mi', $conf, $matches)) { $conf = preg_replace('/^(numberofstrawberries)(|\s*\S*)$/mi', '$1 62000', $conf); } else { $conf .= 'NUMBEROFSTRAWBERRIES 62000' . PHP_EOL; } echo $conf;
Preserve the algorithm and functionality while converting the code from Java to PHP.
import java.io.*; import java.util.*; import java.util.regex.*; public class UpdateConfig { public static void main(String[] args) { if (args[0] == null) { System.out.println("filename required"); } else if (readConfig(args[0])) { enableOption("seedsremoved"); disableOption("needspeeling"); setOption("numberofbananas", "1024"); addOption("numberofstrawberries", "62000"); store(); } } private enum EntryType { EMPTY, ENABLED, DISABLED, COMMENT } private static class Entry { EntryType type; String name, value; Entry(EntryType t, String n, String v) { type = t; name = n; value = v; } } private static Map<String, Entry> entries = new LinkedHashMap<>(); private static String path; private static boolean readConfig(String p) { path = p; File f = new File(path); if (!f.exists() || f.isDirectory()) return false; String regexString = "^(;*)\\s*([A-Za-z0-9]+)\\s*([A-Za-z0-9]*)"; Pattern regex = Pattern.compile(regexString); try (Scanner sc = new Scanner(new FileReader(f))){ int emptyLines = 0; String line; while (sc.hasNext()) { line = sc.nextLine().trim(); if (line.isEmpty()) { addOption("" + emptyLines++, null, EntryType.EMPTY); } else if (line.charAt(0) == '#') { entries.put(line, new Entry(EntryType.COMMENT, line, null)); } else { line = line.replaceAll("[^a-zA-Z0-9\\x20;]", ""); Matcher m = regex.matcher(line); if (m.find() && !m.group(2).isEmpty()) { EntryType t = EntryType.ENABLED; if (!m.group(1).isEmpty()) t = EntryType.DISABLED; addOption(m.group(2), m.group(3), t); } } } } catch (IOException e) { System.out.println(e); } return true; } private static void addOption(String name, String value) { addOption(name, value, EntryType.ENABLED); } private static void addOption(String name, String value, EntryType t) { name = name.toUpperCase(); entries.put(name, new Entry(t, name, value)); } private static void enableOption(String name) { Entry e = entries.get(name.toUpperCase()); if (e != null) e.type = EntryType.ENABLED; } private static void disableOption(String name) { Entry e = entries.get(name.toUpperCase()); if (e != null) e.type = EntryType.DISABLED; } private static void setOption(String name, String value) { Entry e = entries.get(name.toUpperCase()); if (e != null) e.value = value; } private static void store() { try (PrintWriter pw = new PrintWriter(path)) { for (Entry e : entries.values()) { switch (e.type) { case EMPTY: pw.println(); break; case ENABLED: pw.format("%s %s%n", e.name, e.value); break; case DISABLED: pw.format("; %s %s%n", e.name, e.value); break; case COMMENT: pw.println(e.name); break; default: break; } } if (pw.checkError()) { throw new IOException("writing to file failed"); } } catch (IOException e) { System.out.println(e); } } }
<?php $conf = file_get_contents('update-conf-file.txt'); $conf = preg_replace('/^(needspeeling)(|\s*\S*)$/mi', '; $1', $conf); $conf = preg_replace('/^;?\s*(seedsremoved)/mi', '$1', $conf); $conf = preg_replace('/^(numberofbananas)(|\s*\S*)$/mi', '$1 1024', $conf); if (preg_match('/^;?\s*(numberofstrawberries)/mi', $conf, $matches)) { $conf = preg_replace('/^(numberofstrawberries)(|\s*\S*)$/mi', '$1 62000', $conf); } else { $conf .= 'NUMBEROFSTRAWBERRIES 62000' . PHP_EOL; } echo $conf;
Produce a language-to-language conversion: from Java to PHP, same semantics.
1. 1.0 2432311.7567374 1.234E-10 1.234e-10 758832d 728832f 1.0f 758832D 728832F 1.0F 1 / 2. 1 / 2
.12 0.1234 1.2e3 7E-10
Change the programming language of this snippet from Java to PHP without modifying what it does.
1. 1.0 2432311.7567374 1.234E-10 1.234e-10 758832d 728832f 1.0f 758832D 728832F 1.0F 1 / 2. 1 / 2
.12 0.1234 1.2e3 7E-10
Change the programming language of this snippet from Java to PHP without modifying what it does.
package lvijay; import java.util.concurrent.atomic.AtomicInteger; import java.util.function.Function; public class Church { public static interface ChurchNum extends Function<ChurchNum, ChurchNum> { } public static ChurchNum zero() { return f -> x -> x; } public static ChurchNum next(ChurchNum n) { return f -> x -> f.apply(n.apply(f).apply(x)); } public static ChurchNum plus(ChurchNum a) { return b -> f -> x -> b.apply(f).apply(a.apply(f).apply(x)); } public static ChurchNum pow(ChurchNum m) { return n -> m.apply(n); } public static ChurchNum mult(ChurchNum a) { return b -> f -> x -> b.apply(a.apply(f)).apply(x); } public static ChurchNum toChurchNum(int n) { if (n <= 0) { return zero(); } return next(toChurchNum(n - 1)); } public static int toInt(ChurchNum c) { AtomicInteger counter = new AtomicInteger(0); ChurchNum funCounter = f -> { counter.incrementAndGet(); return f; }; plus(zero()).apply(c).apply(funCounter).apply(x -> x); return counter.get(); } public static void main(String[] args) { ChurchNum zero = zero(); ChurchNum three = next(next(next(zero))); ChurchNum four = next(next(next(next(zero)))); System.out.println("3+4=" + toInt(plus(three).apply(four))); System.out.println("4+3=" + toInt(plus(four).apply(three))); System.out.println("3*4=" + toInt(mult(three).apply(four))); System.out.println("4*3=" + toInt(mult(four).apply(three))); System.out.println("3^4=" + toInt(pow(four).apply(three))); System.out.println("4^3=" + toInt(pow(three).apply(four))); System.out.println(" 8=" + toInt(toChurchNum(8))); } }
<?php $zero = function($f) { return function ($x) { return $x; }; }; $succ = function($n) { return function($f) use (&$n) { return function($x) use (&$n, &$f) { return $f( ($n($f))($x) ); }; }; }; $add = function($n, $m) { return function($f) use (&$n, &$m) { return function($x) use (&$f, &$n, &$m) { return ($m($f))(($n($f))($x)); }; }; }; $mult = function($n, $m) { return function($f) use (&$n, &$m) { return function($x) use (&$f, &$n, &$m) { return ($m($n($f)))($x); }; }; }; $power = function($b,$e) { return $e($b); }; $to_int = function($f) { $count_up = function($i) { return $i+1; }; return ($f($count_up))(0); }; $from_int = function($x) { $countdown = function($i) use (&$countdown) { global $zero, $succ; if ( $i == 0 ) { return $zero; } else { return $succ($countdown($i-1)); }; }; return $countdown($x); }; $three = $succ($succ($succ($zero))); $four = $from_int(4); foreach (array($add($three,$four), $mult($three,$four), $power($three,$four), $power($four,$three)) as $ch) { print($to_int($ch)); print("\n"); } ?>
Transform the following Java implementation into PHP, maintaining the same output and logic.
package lvijay; import java.util.concurrent.atomic.AtomicInteger; import java.util.function.Function; public class Church { public static interface ChurchNum extends Function<ChurchNum, ChurchNum> { } public static ChurchNum zero() { return f -> x -> x; } public static ChurchNum next(ChurchNum n) { return f -> x -> f.apply(n.apply(f).apply(x)); } public static ChurchNum plus(ChurchNum a) { return b -> f -> x -> b.apply(f).apply(a.apply(f).apply(x)); } public static ChurchNum pow(ChurchNum m) { return n -> m.apply(n); } public static ChurchNum mult(ChurchNum a) { return b -> f -> x -> b.apply(a.apply(f)).apply(x); } public static ChurchNum toChurchNum(int n) { if (n <= 0) { return zero(); } return next(toChurchNum(n - 1)); } public static int toInt(ChurchNum c) { AtomicInteger counter = new AtomicInteger(0); ChurchNum funCounter = f -> { counter.incrementAndGet(); return f; }; plus(zero()).apply(c).apply(funCounter).apply(x -> x); return counter.get(); } public static void main(String[] args) { ChurchNum zero = zero(); ChurchNum three = next(next(next(zero))); ChurchNum four = next(next(next(next(zero)))); System.out.println("3+4=" + toInt(plus(three).apply(four))); System.out.println("4+3=" + toInt(plus(four).apply(three))); System.out.println("3*4=" + toInt(mult(three).apply(four))); System.out.println("4*3=" + toInt(mult(four).apply(three))); System.out.println("3^4=" + toInt(pow(four).apply(three))); System.out.println("4^3=" + toInt(pow(three).apply(four))); System.out.println(" 8=" + toInt(toChurchNum(8))); } }
<?php $zero = function($f) { return function ($x) { return $x; }; }; $succ = function($n) { return function($f) use (&$n) { return function($x) use (&$n, &$f) { return $f( ($n($f))($x) ); }; }; }; $add = function($n, $m) { return function($f) use (&$n, &$m) { return function($x) use (&$f, &$n, &$m) { return ($m($f))(($n($f))($x)); }; }; }; $mult = function($n, $m) { return function($f) use (&$n, &$m) { return function($x) use (&$f, &$n, &$m) { return ($m($n($f)))($x); }; }; }; $power = function($b,$e) { return $e($b); }; $to_int = function($f) { $count_up = function($i) { return $i+1; }; return ($f($count_up))(0); }; $from_int = function($x) { $countdown = function($i) use (&$countdown) { global $zero, $succ; if ( $i == 0 ) { return $zero; } else { return $succ($countdown($i-1)); }; }; return $countdown($x); }; $three = $succ($succ($succ($zero))); $four = $from_int(4); foreach (array($add($three,$four), $mult($three,$four), $power($three,$four), $power($four,$three)) as $ch) { print($to_int($ch)); print("\n"); } ?>
Ensure the translated PHP code behaves exactly like the original Java snippet.
package lvijay; import java.util.concurrent.atomic.AtomicInteger; import java.util.function.Function; public class Church { public static interface ChurchNum extends Function<ChurchNum, ChurchNum> { } public static ChurchNum zero() { return f -> x -> x; } public static ChurchNum next(ChurchNum n) { return f -> x -> f.apply(n.apply(f).apply(x)); } public static ChurchNum plus(ChurchNum a) { return b -> f -> x -> b.apply(f).apply(a.apply(f).apply(x)); } public static ChurchNum pow(ChurchNum m) { return n -> m.apply(n); } public static ChurchNum mult(ChurchNum a) { return b -> f -> x -> b.apply(a.apply(f)).apply(x); } public static ChurchNum toChurchNum(int n) { if (n <= 0) { return zero(); } return next(toChurchNum(n - 1)); } public static int toInt(ChurchNum c) { AtomicInteger counter = new AtomicInteger(0); ChurchNum funCounter = f -> { counter.incrementAndGet(); return f; }; plus(zero()).apply(c).apply(funCounter).apply(x -> x); return counter.get(); } public static void main(String[] args) { ChurchNum zero = zero(); ChurchNum three = next(next(next(zero))); ChurchNum four = next(next(next(next(zero)))); System.out.println("3+4=" + toInt(plus(three).apply(four))); System.out.println("4+3=" + toInt(plus(four).apply(three))); System.out.println("3*4=" + toInt(mult(three).apply(four))); System.out.println("4*3=" + toInt(mult(four).apply(three))); System.out.println("3^4=" + toInt(pow(four).apply(three))); System.out.println("4^3=" + toInt(pow(three).apply(four))); System.out.println(" 8=" + toInt(toChurchNum(8))); } }
<?php $zero = function($f) { return function ($x) { return $x; }; }; $succ = function($n) { return function($f) use (&$n) { return function($x) use (&$n, &$f) { return $f( ($n($f))($x) ); }; }; }; $add = function($n, $m) { return function($f) use (&$n, &$m) { return function($x) use (&$f, &$n, &$m) { return ($m($f))(($n($f))($x)); }; }; }; $mult = function($n, $m) { return function($f) use (&$n, &$m) { return function($x) use (&$f, &$n, &$m) { return ($m($n($f)))($x); }; }; }; $power = function($b,$e) { return $e($b); }; $to_int = function($f) { $count_up = function($i) { return $i+1; }; return ($f($count_up))(0); }; $from_int = function($x) { $countdown = function($i) use (&$countdown) { global $zero, $succ; if ( $i == 0 ) { return $zero; } else { return $succ($countdown($i-1)); }; }; return $countdown($x); }; $three = $succ($succ($succ($zero))); $four = $from_int(4); foreach (array($add($three,$four), $mult($three,$four), $power($three,$four), $power($four,$three)) as $ch) { print($to_int($ch)); print("\n"); } ?>
Generate an equivalent PHP version of this Java code.
package lvijay; import java.util.concurrent.atomic.AtomicInteger; import java.util.function.Function; public class Church { public static interface ChurchNum extends Function<ChurchNum, ChurchNum> { } public static ChurchNum zero() { return f -> x -> x; } public static ChurchNum next(ChurchNum n) { return f -> x -> f.apply(n.apply(f).apply(x)); } public static ChurchNum plus(ChurchNum a) { return b -> f -> x -> b.apply(f).apply(a.apply(f).apply(x)); } public static ChurchNum pow(ChurchNum m) { return n -> m.apply(n); } public static ChurchNum mult(ChurchNum a) { return b -> f -> x -> b.apply(a.apply(f)).apply(x); } public static ChurchNum toChurchNum(int n) { if (n <= 0) { return zero(); } return next(toChurchNum(n - 1)); } public static int toInt(ChurchNum c) { AtomicInteger counter = new AtomicInteger(0); ChurchNum funCounter = f -> { counter.incrementAndGet(); return f; }; plus(zero()).apply(c).apply(funCounter).apply(x -> x); return counter.get(); } public static void main(String[] args) { ChurchNum zero = zero(); ChurchNum three = next(next(next(zero))); ChurchNum four = next(next(next(next(zero)))); System.out.println("3+4=" + toInt(plus(three).apply(four))); System.out.println("4+3=" + toInt(plus(four).apply(three))); System.out.println("3*4=" + toInt(mult(three).apply(four))); System.out.println("4*3=" + toInt(mult(four).apply(three))); System.out.println("3^4=" + toInt(pow(four).apply(three))); System.out.println("4^3=" + toInt(pow(three).apply(four))); System.out.println(" 8=" + toInt(toChurchNum(8))); } }
<?php $zero = function($f) { return function ($x) { return $x; }; }; $succ = function($n) { return function($f) use (&$n) { return function($x) use (&$n, &$f) { return $f( ($n($f))($x) ); }; }; }; $add = function($n, $m) { return function($f) use (&$n, &$m) { return function($x) use (&$f, &$n, &$m) { return ($m($f))(($n($f))($x)); }; }; }; $mult = function($n, $m) { return function($f) use (&$n, &$m) { return function($x) use (&$f, &$n, &$m) { return ($m($n($f)))($x); }; }; }; $power = function($b,$e) { return $e($b); }; $to_int = function($f) { $count_up = function($i) { return $i+1; }; return ($f($count_up))(0); }; $from_int = function($x) { $countdown = function($i) use (&$countdown) { global $zero, $succ; if ( $i == 0 ) { return $zero; } else { return $succ($countdown($i-1)); }; }; return $countdown($x); }; $three = $succ($succ($succ($zero))); $four = $from_int(4); foreach (array($add($three,$four), $mult($three,$four), $power($three,$four), $power($four,$three)) as $ch) { print($to_int($ch)); print("\n"); } ?>
Please provide an equivalent version of this Java code in PHP.
module BreakOO { class Exposed { public String pub = "public"; protected String pro = "protected"; private String pri = "private"; @Override String toString() { return $"pub={pub.quoted()}, pro={pro.quoted()}, pri={pri.quoted()}"; } } void run() { @Inject Console console; Exposed expo = new Exposed(); console.print($"before: {expo}"); expo.pub = $"this was {expo.pub}"; assert (protected Exposed) expoPro := &expo.revealAs((protected Exposed)); expoPro.pro = $"this was {expoPro.pro}"; assert (private Exposed) expoPri := &expo.revealAs((private Exposed)); expoPri.pri = $"this was {expoPri.pri}"; assert (struct Exposed) expoStr := &expo.revealAs((struct Exposed)); expoStr.pub = $"{expoStr.pub}!!!"; expoStr.pro = $"{expoStr.pro}!!!"; expoStr.pri = $"{expoStr.pri}!!!"; console.print($"after: {expo}"); } }
<?php class SimpleClass { private $answer = "hello\"world\nforever :)"; } $class = new SimpleClass; ob_start(); var_export($class); $class_content = ob_get_clean(); $class_content = preg_replace('"^SimpleClass::__set_state\("', 'return ', $class_content); $class_content = preg_replace('"\)$"', ';', $class_content); $new_class = eval($class_content); echo $new_class['answer'];
Change the programming language of this snippet from Java to PHP without modifying what it does.
module BreakOO { class Exposed { public String pub = "public"; protected String pro = "protected"; private String pri = "private"; @Override String toString() { return $"pub={pub.quoted()}, pro={pro.quoted()}, pri={pri.quoted()}"; } } void run() { @Inject Console console; Exposed expo = new Exposed(); console.print($"before: {expo}"); expo.pub = $"this was {expo.pub}"; assert (protected Exposed) expoPro := &expo.revealAs((protected Exposed)); expoPro.pro = $"this was {expoPro.pro}"; assert (private Exposed) expoPri := &expo.revealAs((private Exposed)); expoPri.pri = $"this was {expoPri.pri}"; assert (struct Exposed) expoStr := &expo.revealAs((struct Exposed)); expoStr.pub = $"{expoStr.pub}!!!"; expoStr.pro = $"{expoStr.pro}!!!"; expoStr.pri = $"{expoStr.pri}!!!"; console.print($"after: {expo}"); } }
<?php class SimpleClass { private $answer = "hello\"world\nforever :)"; } $class = new SimpleClass; ob_start(); var_export($class); $class_content = ob_get_clean(); $class_content = preg_replace('"^SimpleClass::__set_state\("', 'return ', $class_content); $class_content = preg_replace('"\)$"', ';', $class_content); $new_class = eval($class_content); echo $new_class['answer'];
Port the following code from Java to PHP with equivalent syntax and logic.
module BreakOO { class Exposed { public String pub = "public"; protected String pro = "protected"; private String pri = "private"; @Override String toString() { return $"pub={pub.quoted()}, pro={pro.quoted()}, pri={pri.quoted()}"; } } void run() { @Inject Console console; Exposed expo = new Exposed(); console.print($"before: {expo}"); expo.pub = $"this was {expo.pub}"; assert (protected Exposed) expoPro := &expo.revealAs((protected Exposed)); expoPro.pro = $"this was {expoPro.pro}"; assert (private Exposed) expoPri := &expo.revealAs((private Exposed)); expoPri.pri = $"this was {expoPri.pri}"; assert (struct Exposed) expoStr := &expo.revealAs((struct Exposed)); expoStr.pub = $"{expoStr.pub}!!!"; expoStr.pro = $"{expoStr.pro}!!!"; expoStr.pri = $"{expoStr.pri}!!!"; console.print($"after: {expo}"); } }
<?php class SimpleClass { private $answer = "hello\"world\nforever :)"; } $class = new SimpleClass; ob_start(); var_export($class); $class_content = ob_get_clean(); $class_content = preg_replace('"^SimpleClass::__set_state\("', 'return ', $class_content); $class_content = preg_replace('"\)$"', ';', $class_content); $new_class = eval($class_content); echo $new_class['answer'];
Can you help me rewrite this code in PHP instead of Java, keeping it the same logically?
module BreakOO { class Exposed { public String pub = "public"; protected String pro = "protected"; private String pri = "private"; @Override String toString() { return $"pub={pub.quoted()}, pro={pro.quoted()}, pri={pri.quoted()}"; } } void run() { @Inject Console console; Exposed expo = new Exposed(); console.print($"before: {expo}"); expo.pub = $"this was {expo.pub}"; assert (protected Exposed) expoPro := &expo.revealAs((protected Exposed)); expoPro.pro = $"this was {expoPro.pro}"; assert (private Exposed) expoPri := &expo.revealAs((private Exposed)); expoPri.pri = $"this was {expoPri.pri}"; assert (struct Exposed) expoStr := &expo.revealAs((struct Exposed)); expoStr.pub = $"{expoStr.pub}!!!"; expoStr.pro = $"{expoStr.pro}!!!"; expoStr.pri = $"{expoStr.pri}!!!"; console.print($"after: {expo}"); } }
<?php class SimpleClass { private $answer = "hello\"world\nforever :)"; } $class = new SimpleClass; ob_start(); var_export($class); $class_content = ob_get_clean(); $class_content = preg_replace('"^SimpleClass::__set_state\("', 'return ', $class_content); $class_content = preg_replace('"\)$"', ';', $class_content); $new_class = eval($class_content); echo $new_class['answer'];
Preserve the algorithm and functionality while converting the code from Java to PHP.
import java.io.*; class Entity implements Serializable { static final long serialVersionUID = 3504465751164822571L; String name = "Entity"; public String toString() { return name; } } class Person extends Entity implements Serializable { static final long serialVersionUID = -9170445713373959735L; Person() { name = "Cletus"; } } public class SerializationTest { public static void main(String[] args) { Person instance1 = new Person(); System.out.println(instance1); Entity instance2 = new Entity(); System.out.println(instance2); try { ObjectOutput out = new ObjectOutputStream(new FileOutputStream("objects.dat")); out.writeObject(instance1); out.writeObject(instance2); out.close(); System.out.println("Serialized..."); } catch (IOException e) { System.err.println("Something screwed up while serializing"); e.printStackTrace(); System.exit(1); } try { ObjectInput in = new ObjectInputStream(new FileInputStream("objects.dat")); Object readObject1 = in.readObject(); Object readObject2 = in.readObject(); in.close(); System.out.println("Deserialized..."); System.out.println(readObject1); System.out.println(readObject2); } catch (IOException e) { System.err.println("Something screwed up while deserializing"); e.printStackTrace(); System.exit(1); } catch (ClassNotFoundException e) { System.err.println("Unknown class for deserialized object"); e.printStackTrace(); System.exit(1); } } }
$myObj = new Object(); $serializedObj = serialize($myObj);
Change the programming language of this snippet from Java to PHP without modifying what it does.
import java.io.*; class Entity implements Serializable { static final long serialVersionUID = 3504465751164822571L; String name = "Entity"; public String toString() { return name; } } class Person extends Entity implements Serializable { static final long serialVersionUID = -9170445713373959735L; Person() { name = "Cletus"; } } public class SerializationTest { public static void main(String[] args) { Person instance1 = new Person(); System.out.println(instance1); Entity instance2 = new Entity(); System.out.println(instance2); try { ObjectOutput out = new ObjectOutputStream(new FileOutputStream("objects.dat")); out.writeObject(instance1); out.writeObject(instance2); out.close(); System.out.println("Serialized..."); } catch (IOException e) { System.err.println("Something screwed up while serializing"); e.printStackTrace(); System.exit(1); } try { ObjectInput in = new ObjectInputStream(new FileInputStream("objects.dat")); Object readObject1 = in.readObject(); Object readObject2 = in.readObject(); in.close(); System.out.println("Deserialized..."); System.out.println(readObject1); System.out.println(readObject2); } catch (IOException e) { System.err.println("Something screwed up while deserializing"); e.printStackTrace(); System.exit(1); } catch (ClassNotFoundException e) { System.err.println("Unknown class for deserialized object"); e.printStackTrace(); System.exit(1); } } }
$myObj = new Object(); $serializedObj = serialize($myObj);
Port the following code from Java to PHP with equivalent syntax and logic.
import java.time.LocalDate; import java.time.temporal.WeekFields; public class LongYear { public static void main(String[] args) { System.out.printf("Long years this century:%n"); for (int year = 2000 ; year < 2100 ; year++ ) { if ( longYear(year) ) { System.out.print(year + " "); } } } private static boolean longYear(int year) { return LocalDate.of(year, 12, 28).get(WeekFields.ISO.weekOfYear()) == 53; } }
function isLongYear($year) { return (53 == strftime('%V', gmmktime(0,0,0,12,28,$year))); } for ($y=1995; $y<=2045; ++$y) { if (isLongYear($y)) { printf("%s\n", $y); } }
Produce a language-to-language conversion: from Java to PHP, same semantics.
import java.time.LocalDate; import java.time.temporal.WeekFields; public class LongYear { public static void main(String[] args) { System.out.printf("Long years this century:%n"); for (int year = 2000 ; year < 2100 ; year++ ) { if ( longYear(year) ) { System.out.print(year + " "); } } } private static boolean longYear(int year) { return LocalDate.of(year, 12, 28).get(WeekFields.ISO.weekOfYear()) == 53; } }
function isLongYear($year) { return (53 == strftime('%V', gmmktime(0,0,0,12,28,$year))); } for ($y=1995; $y<=2045; ++$y) { if (isLongYear($y)) { printf("%s\n", $y); } }
Write a version of this Java function in PHP with identical behavior.
import java.util.*; class MergeMaps { public static void main(String[] args) { Map<String, Object> base = new HashMap<>(); base.put("name", "Rocket Skates"); base.put("price", 12.75); base.put("color", "yellow"); Map<String, Object> update = new HashMap<>(); update.put("price", 15.25); update.put("color", "red"); update.put("year", 1974); Map<String, Object> result = new HashMap<>(base); result.putAll(update); System.out.println(result); } }
<? $base = array("name" => "Rocket Skates", "price" => 12.75, "color" => "yellow"); $update = array("price" => 15.25, "color" => "red", "year" => 1974); $result = $update + $base; // Notice that the order is reversed print_r($result); ?>
Generate a PHP translation of this Java snippet without changing its computational steps.
import java.util.*; class MergeMaps { public static void main(String[] args) { Map<String, Object> base = new HashMap<>(); base.put("name", "Rocket Skates"); base.put("price", 12.75); base.put("color", "yellow"); Map<String, Object> update = new HashMap<>(); update.put("price", 15.25); update.put("color", "red"); update.put("year", 1974); Map<String, Object> result = new HashMap<>(base); result.putAll(update); System.out.println(result); } }
<? $base = array("name" => "Rocket Skates", "price" => 12.75, "color" => "yellow"); $update = array("price" => 15.25, "color" => "red", "year" => 1974); $result = $update + $base; // Notice that the order is reversed print_r($result); ?>
Translate the given Java code snippet into PHP without altering its behavior.
import java.util.*; class MergeMaps { public static void main(String[] args) { Map<String, Object> base = new HashMap<>(); base.put("name", "Rocket Skates"); base.put("price", 12.75); base.put("color", "yellow"); Map<String, Object> update = new HashMap<>(); update.put("price", 15.25); update.put("color", "red"); update.put("year", 1974); Map<String, Object> result = new HashMap<>(base); result.putAll(update); System.out.println(result); } }
<? $base = array("name" => "Rocket Skates", "price" => 12.75, "color" => "yellow"); $update = array("price" => 15.25, "color" => "red", "year" => 1974); $result = $update + $base; // Notice that the order is reversed print_r($result); ?>
Keep all operations the same but rewrite the snippet in PHP.
import java.util.*; class MergeMaps { public static void main(String[] args) { Map<String, Object> base = new HashMap<>(); base.put("name", "Rocket Skates"); base.put("price", 12.75); base.put("color", "yellow"); Map<String, Object> update = new HashMap<>(); update.put("price", 15.25); update.put("color", "red"); update.put("year", 1974); Map<String, Object> result = new HashMap<>(base); result.putAll(update); System.out.println(result); } }
<? $base = array("name" => "Rocket Skates", "price" => 12.75, "color" => "yellow"); $update = array("price" => 15.25, "color" => "red", "year" => 1974); $result = $update + $base; // Notice that the order is reversed print_r($result); ?>
Change the programming language of this snippet from Java to PHP without modifying what it does.
import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.ArrayList; import java.util.Arrays; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Objects; import java.util.Random; public class MarkovChain { private static Random r = new Random(); private static String markov(String filePath, int keySize, int outputSize) throws IOException { if (keySize < 1) throw new IllegalArgumentException("Key size can't be less than 1"); Path path = Paths.get(filePath); byte[] bytes = Files.readAllBytes(path); String[] words = new String(bytes).trim().split(" "); if (outputSize < keySize || outputSize >= words.length) { throw new IllegalArgumentException("Output size is out of range"); } Map<String, List<String>> dict = new HashMap<>(); for (int i = 0; i < (words.length - keySize); ++i) { StringBuilder key = new StringBuilder(words[i]); for (int j = i + 1; j < i + keySize; ++j) { key.append(' ').append(words[j]); } String value = (i + keySize < words.length) ? words[i + keySize] : ""; if (!dict.containsKey(key.toString())) { ArrayList<String> list = new ArrayList<>(); list.add(value); dict.put(key.toString(), list); } else { dict.get(key.toString()).add(value); } } int n = 0; int rn = r.nextInt(dict.size()); String prefix = (String) dict.keySet().toArray()[rn]; List<String> output = new ArrayList<>(Arrays.asList(prefix.split(" "))); while (true) { List<String> suffix = dict.get(prefix); if (suffix.size() == 1) { if (Objects.equals(suffix.get(0), "")) return output.stream().reduce("", (a, b) -> a + " " + b); output.add(suffix.get(0)); } else { rn = r.nextInt(suffix.size()); output.add(suffix.get(rn)); } if (output.size() >= outputSize) return output.stream().limit(outputSize).reduce("", (a, b) -> a + " " + b); n++; prefix = output.stream().skip(n).limit(keySize).reduce("", (a, b) -> a + " " + b).trim(); } } public static void main(String[] args) throws IOException { System.out.println(markov("alice_oz.txt", 3, 200)); } }
<?php function markovChainTextGenerator($text, $keySize, $maxWords) { $token = array(); $position = 0; $maxPosition = strlen($text); while ($position < $maxPosition) { if (preg_match('/^(\S+)/', substr($text, $position, 25), $matches)) { $token[] = $matches[1]; $position += strlen($matches[1]); } elseif (preg_match('/^(\s+)/', substr($text, $position, 25), $matches)) { $position += strlen($matches[1]); } else { die( 'Unknown token found at position ' . $position . ' : ' . substr($text, $position, 25) . '...' . PHP_EOL ); } } $dictionary = array(); for ($i = 0 ; $i < count($token) - $keySize ; $i++) { $prefix = ''; $separator = ''; for ($c = 0 ; $c < $keySize ; $c++) { $prefix .= $separator . $token[$i + $c]; $separator = '.'; } $dictionary[$prefix][] = $token[$i + $keySize]; } $rand = rand(0, count($token) - $keySize); $startToken = array(); for ($c = 0 ; $c < $keySize ; $c++) { array_push($startToken, $token[$rand + $c]); } $text = implode(' ', $startToken); $words = $keySize; do { $tokenKey = implode('.', $startToken); $rand = rand(0, count($dictionary[$tokenKey]) - 1); $newToken = $dictionary[$tokenKey][$rand]; $text .= ' ' . $newToken; $words++; array_shift($startToken); array_push($startToken, $newToken); } while($words < $maxWords); return $text; } srand(5678); $text = markovChainTextGenerator( file_get_contents(__DIR__ . '/inc/alice_oz.txt'), 3, 308 ); echo wordwrap($text, 100, PHP_EOL) . PHP_EOL;
Produce a functionally identical PHP code for the snippet given in Java.
import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.ArrayList; import java.util.Arrays; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Objects; import java.util.Random; public class MarkovChain { private static Random r = new Random(); private static String markov(String filePath, int keySize, int outputSize) throws IOException { if (keySize < 1) throw new IllegalArgumentException("Key size can't be less than 1"); Path path = Paths.get(filePath); byte[] bytes = Files.readAllBytes(path); String[] words = new String(bytes).trim().split(" "); if (outputSize < keySize || outputSize >= words.length) { throw new IllegalArgumentException("Output size is out of range"); } Map<String, List<String>> dict = new HashMap<>(); for (int i = 0; i < (words.length - keySize); ++i) { StringBuilder key = new StringBuilder(words[i]); for (int j = i + 1; j < i + keySize; ++j) { key.append(' ').append(words[j]); } String value = (i + keySize < words.length) ? words[i + keySize] : ""; if (!dict.containsKey(key.toString())) { ArrayList<String> list = new ArrayList<>(); list.add(value); dict.put(key.toString(), list); } else { dict.get(key.toString()).add(value); } } int n = 0; int rn = r.nextInt(dict.size()); String prefix = (String) dict.keySet().toArray()[rn]; List<String> output = new ArrayList<>(Arrays.asList(prefix.split(" "))); while (true) { List<String> suffix = dict.get(prefix); if (suffix.size() == 1) { if (Objects.equals(suffix.get(0), "")) return output.stream().reduce("", (a, b) -> a + " " + b); output.add(suffix.get(0)); } else { rn = r.nextInt(suffix.size()); output.add(suffix.get(rn)); } if (output.size() >= outputSize) return output.stream().limit(outputSize).reduce("", (a, b) -> a + " " + b); n++; prefix = output.stream().skip(n).limit(keySize).reduce("", (a, b) -> a + " " + b).trim(); } } public static void main(String[] args) throws IOException { System.out.println(markov("alice_oz.txt", 3, 200)); } }
<?php function markovChainTextGenerator($text, $keySize, $maxWords) { $token = array(); $position = 0; $maxPosition = strlen($text); while ($position < $maxPosition) { if (preg_match('/^(\S+)/', substr($text, $position, 25), $matches)) { $token[] = $matches[1]; $position += strlen($matches[1]); } elseif (preg_match('/^(\s+)/', substr($text, $position, 25), $matches)) { $position += strlen($matches[1]); } else { die( 'Unknown token found at position ' . $position . ' : ' . substr($text, $position, 25) . '...' . PHP_EOL ); } } $dictionary = array(); for ($i = 0 ; $i < count($token) - $keySize ; $i++) { $prefix = ''; $separator = ''; for ($c = 0 ; $c < $keySize ; $c++) { $prefix .= $separator . $token[$i + $c]; $separator = '.'; } $dictionary[$prefix][] = $token[$i + $keySize]; } $rand = rand(0, count($token) - $keySize); $startToken = array(); for ($c = 0 ; $c < $keySize ; $c++) { array_push($startToken, $token[$rand + $c]); } $text = implode(' ', $startToken); $words = $keySize; do { $tokenKey = implode('.', $startToken); $rand = rand(0, count($dictionary[$tokenKey]) - 1); $newToken = $dictionary[$tokenKey][$rand]; $text .= ' ' . $newToken; $words++; array_shift($startToken); array_push($startToken, $newToken); } while($words < $maxWords); return $text; } srand(5678); $text = markovChainTextGenerator( file_get_contents(__DIR__ . '/inc/alice_oz.txt'), 3, 308 ); echo wordwrap($text, 100, PHP_EOL) . PHP_EOL;
Generate a PHP translation of this Java snippet without changing its computational steps.
import java.io.*; import java.util.*; public class Dijkstra { private static final Graph.Edge[] GRAPH = { new Graph.Edge("a", "b", 7), new Graph.Edge("a", "c", 9), new Graph.Edge("a", "f", 14), new Graph.Edge("b", "c", 10), new Graph.Edge("b", "d", 15), new Graph.Edge("c", "d", 11), new Graph.Edge("c", "f", 2), new Graph.Edge("d", "e", 6), new Graph.Edge("e", "f", 9), }; private static final String START = "a"; private static final String END = "e"; public static void main(String[] args) { Graph g = new Graph(GRAPH); g.dijkstra(START); g.printPath(END); } } class Graph { private final Map<String, Vertex> graph; public static class Edge { public final String v1, v2; public final int dist; public Edge(String v1, String v2, int dist) { this.v1 = v1; this.v2 = v2; this.dist = dist; } } public static class Vertex implements Comparable<Vertex>{ public final String name; public int dist = Integer.MAX_VALUE; public Vertex previous = null; public final Map<Vertex, Integer> neighbours = new HashMap<>(); public Vertex(String name) { this.name = name; } private void printPath() { if (this == this.previous) { System.out.printf("%s", this.name); } else if (this.previous == null) { System.out.printf("%s(unreached)", this.name); } else { this.previous.printPath(); System.out.printf(" -> %s(%d)", this.name, this.dist); } } public int compareTo(Vertex other) { if (dist == other.dist) return name.compareTo(other.name); return Integer.compare(dist, other.dist); } @Override public String toString() { return "(" + name + ", " + dist + ")"; } } public Graph(Edge[] edges) { graph = new HashMap<>(edges.length); for (Edge e : edges) { if (!graph.containsKey(e.v1)) graph.put(e.v1, new Vertex(e.v1)); if (!graph.containsKey(e.v2)) graph.put(e.v2, new Vertex(e.v2)); } for (Edge e : edges) { graph.get(e.v1).neighbours.put(graph.get(e.v2), e.dist); } } public void dijkstra(String startName) { if (!graph.containsKey(startName)) { System.err.printf("Graph doesn't contain start vertex \"%s\"\n", startName); return; } final Vertex source = graph.get(startName); NavigableSet<Vertex> q = new TreeSet<>(); for (Vertex v : graph.values()) { v.previous = v == source ? source : null; v.dist = v == source ? 0 : Integer.MAX_VALUE; q.add(v); } dijkstra(q); } private void dijkstra(final NavigableSet<Vertex> q) { Vertex u, v; while (!q.isEmpty()) { u = q.pollFirst(); if (u.dist == Integer.MAX_VALUE) break; for (Map.Entry<Vertex, Integer> a : u.neighbours.entrySet()) { v = a.getKey(); final int alternateDist = u.dist + a.getValue(); if (alternateDist < v.dist) { q.remove(v); v.dist = alternateDist; v.previous = u; q.add(v); } } } } public void printPath(String endName) { if (!graph.containsKey(endName)) { System.err.printf("Graph doesn't contain end vertex \"%s\"\n", endName); return; } graph.get(endName).printPath(); System.out.println(); } public void printAllPaths() { for (Vertex v : graph.values()) { v.printPath(); System.out.println(); } } }
<?php function dijkstra($graph_array, $source, $target) { $vertices = array(); $neighbours = array(); foreach ($graph_array as $edge) { array_push($vertices, $edge[0], $edge[1]); $neighbours[$edge[0]][] = array("end" => $edge[1], "cost" => $edge[2]); $neighbours[$edge[1]][] = array("end" => $edge[0], "cost" => $edge[2]); } $vertices = array_unique($vertices); foreach ($vertices as $vertex) { $dist[$vertex] = INF; $previous[$vertex] = NULL; } $dist[$source] = 0; $Q = $vertices; while (count($Q) > 0) { $min = INF; foreach ($Q as $vertex){ if ($dist[$vertex] < $min) { $min = $dist[$vertex]; $u = $vertex; } } $Q = array_diff($Q, array($u)); if ($dist[$u] == INF or $u == $target) { break; } if (isset($neighbours[$u])) { foreach ($neighbours[$u] as $arr) { $alt = $dist[$u] + $arr["cost"]; if ($alt < $dist[$arr["end"]]) { $dist[$arr["end"]] = $alt; $previous[$arr["end"]] = $u; } } } } $path = array(); $u = $target; while (isset($previous[$u])) { array_unshift($path, $u); $u = $previous[$u]; } array_unshift($path, $u); return $path; } $graph_array = array( array("a", "b", 7), array("a", "c", 9), array("a", "f", 14), array("b", "c", 10), array("b", "d", 15), array("c", "d", 11), array("c", "f", 2), array("d", "e", 6), array("e", "f", 9) ); $path = dijkstra($graph_array, "a", "e"); echo "path is: ".implode(", ", $path)."\n";
Maintain the same structure and functionality when rewriting this code in PHP.
import java.io.*; import java.util.*; public class Dijkstra { private static final Graph.Edge[] GRAPH = { new Graph.Edge("a", "b", 7), new Graph.Edge("a", "c", 9), new Graph.Edge("a", "f", 14), new Graph.Edge("b", "c", 10), new Graph.Edge("b", "d", 15), new Graph.Edge("c", "d", 11), new Graph.Edge("c", "f", 2), new Graph.Edge("d", "e", 6), new Graph.Edge("e", "f", 9), }; private static final String START = "a"; private static final String END = "e"; public static void main(String[] args) { Graph g = new Graph(GRAPH); g.dijkstra(START); g.printPath(END); } } class Graph { private final Map<String, Vertex> graph; public static class Edge { public final String v1, v2; public final int dist; public Edge(String v1, String v2, int dist) { this.v1 = v1; this.v2 = v2; this.dist = dist; } } public static class Vertex implements Comparable<Vertex>{ public final String name; public int dist = Integer.MAX_VALUE; public Vertex previous = null; public final Map<Vertex, Integer> neighbours = new HashMap<>(); public Vertex(String name) { this.name = name; } private void printPath() { if (this == this.previous) { System.out.printf("%s", this.name); } else if (this.previous == null) { System.out.printf("%s(unreached)", this.name); } else { this.previous.printPath(); System.out.printf(" -> %s(%d)", this.name, this.dist); } } public int compareTo(Vertex other) { if (dist == other.dist) return name.compareTo(other.name); return Integer.compare(dist, other.dist); } @Override public String toString() { return "(" + name + ", " + dist + ")"; } } public Graph(Edge[] edges) { graph = new HashMap<>(edges.length); for (Edge e : edges) { if (!graph.containsKey(e.v1)) graph.put(e.v1, new Vertex(e.v1)); if (!graph.containsKey(e.v2)) graph.put(e.v2, new Vertex(e.v2)); } for (Edge e : edges) { graph.get(e.v1).neighbours.put(graph.get(e.v2), e.dist); } } public void dijkstra(String startName) { if (!graph.containsKey(startName)) { System.err.printf("Graph doesn't contain start vertex \"%s\"\n", startName); return; } final Vertex source = graph.get(startName); NavigableSet<Vertex> q = new TreeSet<>(); for (Vertex v : graph.values()) { v.previous = v == source ? source : null; v.dist = v == source ? 0 : Integer.MAX_VALUE; q.add(v); } dijkstra(q); } private void dijkstra(final NavigableSet<Vertex> q) { Vertex u, v; while (!q.isEmpty()) { u = q.pollFirst(); if (u.dist == Integer.MAX_VALUE) break; for (Map.Entry<Vertex, Integer> a : u.neighbours.entrySet()) { v = a.getKey(); final int alternateDist = u.dist + a.getValue(); if (alternateDist < v.dist) { q.remove(v); v.dist = alternateDist; v.previous = u; q.add(v); } } } } public void printPath(String endName) { if (!graph.containsKey(endName)) { System.err.printf("Graph doesn't contain end vertex \"%s\"\n", endName); return; } graph.get(endName).printPath(); System.out.println(); } public void printAllPaths() { for (Vertex v : graph.values()) { v.printPath(); System.out.println(); } } }
<?php function dijkstra($graph_array, $source, $target) { $vertices = array(); $neighbours = array(); foreach ($graph_array as $edge) { array_push($vertices, $edge[0], $edge[1]); $neighbours[$edge[0]][] = array("end" => $edge[1], "cost" => $edge[2]); $neighbours[$edge[1]][] = array("end" => $edge[0], "cost" => $edge[2]); } $vertices = array_unique($vertices); foreach ($vertices as $vertex) { $dist[$vertex] = INF; $previous[$vertex] = NULL; } $dist[$source] = 0; $Q = $vertices; while (count($Q) > 0) { $min = INF; foreach ($Q as $vertex){ if ($dist[$vertex] < $min) { $min = $dist[$vertex]; $u = $vertex; } } $Q = array_diff($Q, array($u)); if ($dist[$u] == INF or $u == $target) { break; } if (isset($neighbours[$u])) { foreach ($neighbours[$u] as $arr) { $alt = $dist[$u] + $arr["cost"]; if ($alt < $dist[$arr["end"]]) { $dist[$arr["end"]] = $alt; $previous[$arr["end"]] = $u; } } } } $path = array(); $u = $target; while (isset($previous[$u])) { array_unshift($path, $u); $u = $previous[$u]; } array_unshift($path, $u); return $path; } $graph_array = array( array("a", "b", 7), array("a", "c", 9), array("a", "f", 14), array("b", "c", 10), array("b", "d", 15), array("c", "d", 11), array("c", "f", 2), array("d", "e", 6), array("e", "f", 9) ); $path = dijkstra($graph_array, "a", "e"); echo "path is: ".implode(", ", $path)."\n";
Port the provided Java code into PHP while preserving the original functionality.
Map<String, Integer> map = new HashMap<String, Integer>(); map.put("hello", 1); map.put("world", 2); map.put("!", 3); for (Map.Entry<String, Integer> e : map.entrySet()) { String key = e.getKey(); Integer value = e.getValue(); System.out.println("key = " + key + ", value = " + value); } for (String key : map.keySet()) { System.out.println("key = " + key); } for (Integer value : map.values()) { System.out.println("value = " + value); }
<?php $pairs = array( "hello" => 1, "world" => 2, "!" => 3 ); foreach($pairs as $k => $v) { echo "(k,v) = ($k, $v)\n"; } foreach(array_keys($pairs) as $key) { echo "key = $key, value = $pairs[$key]\n"; } foreach($pairs as $value) { echo "values = $value\n"; } ?>
Convert this Java snippet to PHP and keep its semantics consistent.
Map<String, Integer> map = new HashMap<String, Integer>(); map.put("hello", 1); map.put("world", 2); map.put("!", 3); for (Map.Entry<String, Integer> e : map.entrySet()) { String key = e.getKey(); Integer value = e.getValue(); System.out.println("key = " + key + ", value = " + value); } for (String key : map.keySet()) { System.out.println("key = " + key); } for (Integer value : map.values()) { System.out.println("value = " + value); }
<?php $pairs = array( "hello" => 1, "world" => 2, "!" => 3 ); foreach($pairs as $k => $v) { echo "(k,v) = ($k, $v)\n"; } foreach(array_keys($pairs) as $key) { echo "key = $key, value = $pairs[$key]\n"; } foreach($pairs as $value) { echo "values = $value\n"; } ?>
Write the same code in PHP as shown below in Java.
package rosettacode.heredoc; public class MainApp { public static void main(String[] args) { String hereDoc = """ This is a multiline string. It includes all of this text, but on separate lines in the code. """; System.out.println(hereDoc); } }
$address = <<<END 1, High Street, $town_name, West Midlands. WM4 5HD. END;
Transform the following Java implementation into PHP, maintaining the same output and logic.
package rosettacode.heredoc; public class MainApp { public static void main(String[] args) { String hereDoc = """ This is a multiline string. It includes all of this text, but on separate lines in the code. """; System.out.println(hereDoc); } }
$address = <<<END 1, High Street, $town_name, West Midlands. WM4 5HD. END;
Write the same code in PHP as shown below in Java.
package rosettacode.heredoc; public class MainApp { public static void main(String[] args) { String hereDoc = """ This is a multiline string. It includes all of this text, but on separate lines in the code. """; System.out.println(hereDoc); } }
$address = <<<END 1, High Street, $town_name, West Midlands. WM4 5HD. END;
Transform the following Java implementation into PHP, maintaining the same output and logic.
package rosettacode.heredoc; public class MainApp { public static void main(String[] args) { String hereDoc = """ This is a multiline string. It includes all of this text, but on separate lines in the code. """; System.out.println(hereDoc); } }
$address = <<<END 1, High Street, $town_name, West Midlands. WM4 5HD. END;
Convert this Java block to PHP, preserving its control flow and logic.
import java.util.*; public class HashJoin { public static void main(String[] args) { String[][] table1 = {{"27", "Jonah"}, {"18", "Alan"}, {"28", "Glory"}, {"18", "Popeye"}, {"28", "Alan"}}; String[][] table2 = {{"Jonah", "Whales"}, {"Jonah", "Spiders"}, {"Alan", "Ghosts"}, {"Alan", "Zombies"}, {"Glory", "Buffy"}, {"Bob", "foo"}}; hashJoin(table1, 1, table2, 0).stream() .forEach(r -> System.out.println(Arrays.deepToString(r))); } static List<String[][]> hashJoin(String[][] records1, int idx1, String[][] records2, int idx2) { List<String[][]> result = new ArrayList<>(); Map<String, List<String[]>> map = new HashMap<>(); for (String[] record : records1) { List<String[]> v = map.getOrDefault(record[idx1], new ArrayList<>()); v.add(record); map.put(record[idx1], v); } for (String[] record : records2) { List<String[]> lst = map.get(record[idx2]); if (lst != null) { lst.stream().forEach(r -> { result.add(new String[][]{r, record}); }); } } return result; } }
<?php function hashJoin($table1, $index1, $table2, $index2) { foreach ($table1 as $s) $h[$s[$index1]][] = $s; foreach ($table2 as $r) foreach ($h[$r[$index2]] as $s) $result[] = array($s, $r); return $result; } $table1 = array(array(27, "Jonah"), array(18, "Alan"), array(28, "Glory"), array(18, "Popeye"), array(28, "Alan")); $table2 = array(array("Jonah", "Whales"), array("Jonah", "Spiders"), array("Alan", "Ghosts"), array("Alan", "Zombies"), array("Glory", "Buffy"), array("Bob", "foo")); foreach (hashJoin($table1, 1, $table2, 0) as $row) print_r($row); ?>
Write the same algorithm in PHP as shown in this Java implementation.
import java.util.*; public class HashJoin { public static void main(String[] args) { String[][] table1 = {{"27", "Jonah"}, {"18", "Alan"}, {"28", "Glory"}, {"18", "Popeye"}, {"28", "Alan"}}; String[][] table2 = {{"Jonah", "Whales"}, {"Jonah", "Spiders"}, {"Alan", "Ghosts"}, {"Alan", "Zombies"}, {"Glory", "Buffy"}, {"Bob", "foo"}}; hashJoin(table1, 1, table2, 0).stream() .forEach(r -> System.out.println(Arrays.deepToString(r))); } static List<String[][]> hashJoin(String[][] records1, int idx1, String[][] records2, int idx2) { List<String[][]> result = new ArrayList<>(); Map<String, List<String[]>> map = new HashMap<>(); for (String[] record : records1) { List<String[]> v = map.getOrDefault(record[idx1], new ArrayList<>()); v.add(record); map.put(record[idx1], v); } for (String[] record : records2) { List<String[]> lst = map.get(record[idx2]); if (lst != null) { lst.stream().forEach(r -> { result.add(new String[][]{r, record}); }); } } return result; } }
<?php function hashJoin($table1, $index1, $table2, $index2) { foreach ($table1 as $s) $h[$s[$index1]][] = $s; foreach ($table2 as $r) foreach ($h[$r[$index2]] as $s) $result[] = array($s, $r); return $result; } $table1 = array(array(27, "Jonah"), array(18, "Alan"), array(28, "Glory"), array(18, "Popeye"), array(28, "Alan")); $table2 = array(array("Jonah", "Whales"), array("Jonah", "Spiders"), array("Alan", "Ghosts"), array("Alan", "Zombies"), array("Glory", "Buffy"), array("Bob", "foo")); foreach (hashJoin($table1, 1, $table2, 0) as $row) print_r($row); ?>
Write the same code in PHP as shown below in Java.
public class Animal{ }
class Animal { } class Dog extends Animal { } class Cat extends Animal { } class Lab extends Dog { } class Collie extends Dog { }
Change the following Java code into PHP without altering its purpose.
public class Animal{ }
class Animal { } class Dog extends Animal { } class Cat extends Animal { } class Lab extends Dog { } class Collie extends Dog { }
Produce a functionally identical PHP code for the snippet given in Java.
Map<String, Int> map = new HashMap(); map["foo"] = 5; map["bar"] = 10; map["baz"] = 15; map["foo"] = 6;
$array = array(); $array = []; // Simpler form of array initialization $array['foo'] = 'bar'; $array['bar'] = 'foo'; echo($array['foo']); // bar echo($array['moo']); // Undefined index $array2 = array('fruit' => 'apple', 'price' => 12.96, 'colour' => 'green'); $array2 = ['fruit' => 'apple', 'price' => 12.96, 'colour' => 'green']; echo(isset($array['foo'])); // Faster, but returns false if the value of the element is set to null echo(array_key_exists('foo', $array)); // Slower, but returns true if the value of the element is null
Translate the given Java code snippet into PHP without altering its behavior.
Map<String, Int> map = new HashMap(); map["foo"] = 5; map["bar"] = 10; map["baz"] = 15; map["foo"] = 6;
$array = array(); $array = []; // Simpler form of array initialization $array['foo'] = 'bar'; $array['bar'] = 'foo'; echo($array['foo']); // bar echo($array['moo']); // Undefined index $array2 = array('fruit' => 'apple', 'price' => 12.96, 'colour' => 'green'); $array2 = ['fruit' => 'apple', 'price' => 12.96, 'colour' => 'green']; echo(isset($array['foo'])); // Faster, but returns false if the value of the element is set to null echo(array_key_exists('foo', $array)); // Slower, but returns true if the value of the element is null
Generate an equivalent PHP version of this Java code.
class Point { protected int x, y; public Point() { this(0); } public Point(int x) { this(x, 0); } public Point(int x, int y) { this.x = x; this.y = y; } public Point(Point p) { this(p.x, p.y); } public int getX() { return this.x; } public int getY() { return this.y; } public void setX(int x) { this.x = x; } public void setY(int y) { this.y = y; } public void print() { System.out.println("Point x: " + this.x + " y: " + this.y); } } class Circle extends Point { private int r; public Circle(Point p) { this(p, 0); } public Circle(Point p, int r) { super(p); this.r = r; } public Circle() { this(0); } public Circle(int x) { this(x, 0); } public Circle(int x, int y) { this(x, y, 0); } public Circle(int x, int y, int r) { super(x, y); this.r = r; } public Circle(Circle c) { this(c.x, c.y, c.r); } public int getR() { return this.r; } public void setR(int r) { this.r = r; } public void print() { System.out.println("Circle x: " + this.x + " y: " + this.y + " r: " + this.r); } } public class test { public static void main(String args[]) { Point p = new Point(); Point c = new Circle(); p.print(); c.print(); } }
class Point { protected $_x; protected $_y; public function __construct() { switch( func_num_args() ) { case 1: $point = func_get_arg( 0 ); $this->setFromPoint( $point ); break; case 2: $x = func_get_arg( 0 ); $y = func_get_arg( 1 ); $this->setX( $x ); $this->setY( $y ); break; default: throw new InvalidArgumentException( 'expecting one (Point) argument or two (numeric x and y) arguments' ); } } public function setFromPoint( Point $point ) { $this->setX( $point->getX() ); $this->setY( $point->getY() ); } public function getX() { return $this->_x; } public function setX( $x ) { if( !is_numeric( $x ) ) { throw new InvalidArgumentException( 'expecting numeric value' ); } $this->_x = (float) $x; } public function getY() { return $this->_y; } public function setY( $y ) { if( !is_numeric( $y ) ) { throw new InvalidArgumentException( 'expecting numeric value' ); } $this->_y = (float) $y; } public function output() { echo $this->__toString(); } public function __toString() { return 'Point [x:' . $this->_x . ',y:' . $this->_y . ']'; } }
Change the following Java code into PHP without altering its purpose.
class Point { protected int x, y; public Point() { this(0); } public Point(int x) { this(x, 0); } public Point(int x, int y) { this.x = x; this.y = y; } public Point(Point p) { this(p.x, p.y); } public int getX() { return this.x; } public int getY() { return this.y; } public void setX(int x) { this.x = x; } public void setY(int y) { this.y = y; } public void print() { System.out.println("Point x: " + this.x + " y: " + this.y); } } class Circle extends Point { private int r; public Circle(Point p) { this(p, 0); } public Circle(Point p, int r) { super(p); this.r = r; } public Circle() { this(0); } public Circle(int x) { this(x, 0); } public Circle(int x, int y) { this(x, y, 0); } public Circle(int x, int y, int r) { super(x, y); this.r = r; } public Circle(Circle c) { this(c.x, c.y, c.r); } public int getR() { return this.r; } public void setR(int r) { this.r = r; } public void print() { System.out.println("Circle x: " + this.x + " y: " + this.y + " r: " + this.r); } } public class test { public static void main(String args[]) { Point p = new Point(); Point c = new Circle(); p.print(); c.print(); } }
class Point { protected $_x; protected $_y; public function __construct() { switch( func_num_args() ) { case 1: $point = func_get_arg( 0 ); $this->setFromPoint( $point ); break; case 2: $x = func_get_arg( 0 ); $y = func_get_arg( 1 ); $this->setX( $x ); $this->setY( $y ); break; default: throw new InvalidArgumentException( 'expecting one (Point) argument or two (numeric x and y) arguments' ); } } public function setFromPoint( Point $point ) { $this->setX( $point->getX() ); $this->setY( $point->getY() ); } public function getX() { return $this->_x; } public function setX( $x ) { if( !is_numeric( $x ) ) { throw new InvalidArgumentException( 'expecting numeric value' ); } $this->_x = (float) $x; } public function getY() { return $this->_y; } public function setY( $y ) { if( !is_numeric( $y ) ) { throw new InvalidArgumentException( 'expecting numeric value' ); } $this->_y = (float) $y; } public function output() { echo $this->__toString(); } public function __toString() { return 'Point [x:' . $this->_x . ',y:' . $this->_y . ']'; } }
Write the same code in PHP as shown below in Java.
import java.lang.reflect.Field; public class ListFields { public int examplePublicField = 42; private boolean examplePrivateField = true; public static void main(String[] args) throws IllegalAccessException { ListFields obj = new ListFields(); Class clazz = obj.getClass(); System.out.println("All public fields (including inherited):"); for (Field f : clazz.getFields()) { System.out.printf("%s\t%s\n", f, f.get(obj)); } System.out.println(); System.out.println("All declared fields (excluding inherited):"); for (Field f : clazz.getDeclaredFields()) { System.out.printf("%s\t%s\n", f, f.get(obj)); } } }
<? class Foo { } $obj = new Foo(); $obj->bar = 42; $obj->baz = true; var_dump(get_object_vars($obj)); ?>
Write the same code in PHP as shown below in Java.
import java.lang.reflect.Field; public class ListFields { public int examplePublicField = 42; private boolean examplePrivateField = true; public static void main(String[] args) throws IllegalAccessException { ListFields obj = new ListFields(); Class clazz = obj.getClass(); System.out.println("All public fields (including inherited):"); for (Field f : clazz.getFields()) { System.out.printf("%s\t%s\n", f, f.get(obj)); } System.out.println(); System.out.println("All declared fields (excluding inherited):"); for (Field f : clazz.getDeclaredFields()) { System.out.printf("%s\t%s\n", f, f.get(obj)); } } }
<? class Foo { } $obj = new Foo(); $obj->bar = 42; $obj->baz = true; var_dump(get_object_vars($obj)); ?>
Change the following Java code into PHP without altering its purpose.
import java.io.IOException; import java.nio.charset.StandardCharsets; import java.nio.file.Files; import java.nio.file.Paths; import java.util.ArrayList; import java.util.List; import org.apache.commons.lang3.StringUtils; public class ColumnAligner { private List<String[]> words = new ArrayList<>(); private int columns = 0; private List<Integer> columnWidths = new ArrayList<>(); public ColumnAligner(String s) { String[] lines = s.split("\\n"); for (String line : lines) { processInputLine(line); } } public ColumnAligner(List<String> lines) { for (String line : lines) { processInputLine(line); } } private void processInputLine(String line) { String[] lineWords = line.split("\\$"); words.add(lineWords); columns = Math.max(columns, lineWords.length); for (int i = 0; i < lineWords.length; i++) { String word = lineWords[i]; if (i >= columnWidths.size()) { columnWidths.add(word.length()); } else { columnWidths.set(i, Math.max(columnWidths.get(i), word.length())); } } } interface AlignFunction { String align(String s, int length); } public String alignLeft() { return align(new AlignFunction() { @Override public String align(String s, int length) { return StringUtils.rightPad(s, length); } }); } public String alignRight() { return align(new AlignFunction() { @Override public String align(String s, int length) { return StringUtils.leftPad(s, length); } }); } public String alignCenter() { return align(new AlignFunction() { @Override public String align(String s, int length) { return StringUtils.center(s, length); } }); } private String align(AlignFunction a) { StringBuilder result = new StringBuilder(); for (String[] lineWords : words) { for (int i = 0; i < lineWords.length; i++) { String word = lineWords[i]; if (i == 0) { result.append("|"); } result.append(a.align(word, columnWidths.get(i)) + "|"); } result.append("\n"); } return result.toString(); } public static void main(String args[]) throws IOException { if (args.length < 1) { System.out.println("Usage: ColumnAligner file [left|right|center]"); return; } String filePath = args[0]; String alignment = "left"; if (args.length >= 2) { alignment = args[1]; } ColumnAligner ca = new ColumnAligner(Files.readAllLines(Paths.get(filePath), StandardCharsets.UTF_8)); switch (alignment) { case "left": System.out.print(ca.alignLeft()); break; case "right": System.out.print(ca.alignRight()); break; case "center": System.out.print(ca.alignCenter()); break; default: System.err.println(String.format("Error! Unknown alignment: '%s'", alignment)); break; } } }
<?php $j2justtype = array('L' => STR_PAD_RIGHT, 'R' => STR_PAD_LEFT, 'C' => STR_PAD_BOTH); function aligner($str, $justification = 'L') { global $j2justtype; assert(array_key_exists($justification, $j2justtype)); $justtype = $j2justtype[$justification]; $fieldsbyrow = array(); foreach (explode("\n", $str) as $line) $fieldsbyrow[] = explode('$', $line); $maxfields = max(array_map('count', $fieldsbyrow)); foreach (range(0, $maxfields - 1) as $col) { $maxwidth = 0; foreach ($fieldsbyrow as $fields) $maxwidth = max($maxwidth, strlen(array_key_exists($col, $fields) ? $fields[$col] : 0)); foreach ($fieldsbyrow as &$fields) $fields[$col] = str_pad(array_key_exists($col, $fields) ? $fields[$col] : "", $maxwidth, ' ', $justtype); unset($fields); // see http://bugs.php.net/29992 } $result = ''; foreach ($fieldsbyrow as $fields) $result .= implode(' ', $fields) . "\n"; return $result; } $textinfile = 'Given$a$text$file$of$many$lines,$where$fields$within$a$line$ are$delineated$by$a$single$\'dollar\'$character,$write$a$program that$aligns$each$column$of$fields$by$ensuring$that$words$in$each$ column$are$separated$by$at$least$one$space. Further,$allow$for$each$word$in$a$column$to$be$either$left$ justified,$right$justified,$or$center$justified$within$its$column.'; foreach (array('L', 'R', 'C') as $j) echo aligner($textinfile, $j); ?>
Produce a functionally identical PHP code for the snippet given in Java.
import java.io.IOException; import java.nio.charset.StandardCharsets; import java.nio.file.Files; import java.nio.file.Paths; import java.util.ArrayList; import java.util.List; import org.apache.commons.lang3.StringUtils; public class ColumnAligner { private List<String[]> words = new ArrayList<>(); private int columns = 0; private List<Integer> columnWidths = new ArrayList<>(); public ColumnAligner(String s) { String[] lines = s.split("\\n"); for (String line : lines) { processInputLine(line); } } public ColumnAligner(List<String> lines) { for (String line : lines) { processInputLine(line); } } private void processInputLine(String line) { String[] lineWords = line.split("\\$"); words.add(lineWords); columns = Math.max(columns, lineWords.length); for (int i = 0; i < lineWords.length; i++) { String word = lineWords[i]; if (i >= columnWidths.size()) { columnWidths.add(word.length()); } else { columnWidths.set(i, Math.max(columnWidths.get(i), word.length())); } } } interface AlignFunction { String align(String s, int length); } public String alignLeft() { return align(new AlignFunction() { @Override public String align(String s, int length) { return StringUtils.rightPad(s, length); } }); } public String alignRight() { return align(new AlignFunction() { @Override public String align(String s, int length) { return StringUtils.leftPad(s, length); } }); } public String alignCenter() { return align(new AlignFunction() { @Override public String align(String s, int length) { return StringUtils.center(s, length); } }); } private String align(AlignFunction a) { StringBuilder result = new StringBuilder(); for (String[] lineWords : words) { for (int i = 0; i < lineWords.length; i++) { String word = lineWords[i]; if (i == 0) { result.append("|"); } result.append(a.align(word, columnWidths.get(i)) + "|"); } result.append("\n"); } return result.toString(); } public static void main(String args[]) throws IOException { if (args.length < 1) { System.out.println("Usage: ColumnAligner file [left|right|center]"); return; } String filePath = args[0]; String alignment = "left"; if (args.length >= 2) { alignment = args[1]; } ColumnAligner ca = new ColumnAligner(Files.readAllLines(Paths.get(filePath), StandardCharsets.UTF_8)); switch (alignment) { case "left": System.out.print(ca.alignLeft()); break; case "right": System.out.print(ca.alignRight()); break; case "center": System.out.print(ca.alignCenter()); break; default: System.err.println(String.format("Error! Unknown alignment: '%s'", alignment)); break; } } }
<?php $j2justtype = array('L' => STR_PAD_RIGHT, 'R' => STR_PAD_LEFT, 'C' => STR_PAD_BOTH); function aligner($str, $justification = 'L') { global $j2justtype; assert(array_key_exists($justification, $j2justtype)); $justtype = $j2justtype[$justification]; $fieldsbyrow = array(); foreach (explode("\n", $str) as $line) $fieldsbyrow[] = explode('$', $line); $maxfields = max(array_map('count', $fieldsbyrow)); foreach (range(0, $maxfields - 1) as $col) { $maxwidth = 0; foreach ($fieldsbyrow as $fields) $maxwidth = max($maxwidth, strlen(array_key_exists($col, $fields) ? $fields[$col] : 0)); foreach ($fieldsbyrow as &$fields) $fields[$col] = str_pad(array_key_exists($col, $fields) ? $fields[$col] : "", $maxwidth, ' ', $justtype); unset($fields); // see http://bugs.php.net/29992 } $result = ''; foreach ($fieldsbyrow as $fields) $result .= implode(' ', $fields) . "\n"; return $result; } $textinfile = 'Given$a$text$file$of$many$lines,$where$fields$within$a$line$ are$delineated$by$a$single$\'dollar\'$character,$write$a$program that$aligns$each$column$of$fields$by$ensuring$that$words$in$each$ column$are$separated$by$at$least$one$space. Further,$allow$for$each$word$in$a$column$to$be$either$left$ justified,$right$justified,$or$center$justified$within$its$column.'; foreach (array('L', 'R', 'C') as $j) echo aligner($textinfile, $j); ?>
Please provide an equivalent version of this Java code in PHP.
import java.net.URI; import java.net.URISyntaxException; public class WebAddressParser{ public static void main(String[] args){ parseAddress("foo: parseAddress("urn:example:animal:ferret:nose"); } static void parseAddress(String a){ System.out.println("Parsing " + a); try{ URI u = new URI(a); System.out.println("\tscheme = " + u.getScheme()); System.out.println("\tdomain = " + u.getHost()); System.out.println("\tport = " + (-1==u.getPort()?"default":u.getPort())); System.out.println("\tpath = " + (null==u.getPath()?u.getSchemeSpecificPart():u.getPath())); System.out.println("\tquery = " + u.getQuery()); System.out.println("\tfragment = " + u.getFragment()); } catch (URISyntaxException x){ System.err.println("Oops: " + x); } } }
<?php $urls = array( 'foo://example.com:8042/over/there?name=ferret#nose', 'urn:example:animal:ferret:nose', 'jdbc:mysql://test_user:ouupppssss@localhost:3306/sakila?profileSQL=true', 'ftp://ftp.is.co.za/rfc/rfc1808.txt', 'http://www.ietf.org/rfc/rfc2396.txt#header1', 'ldap://[2001:db8::7]/c=GB?objectClass=one&objectClass=two', 'mailto:John.Doe@example.com', 'news:comp.infosystems.www.servers.unix', 'tel:+1-816-555-1212', 'telnet://192.0.2.16:80/', 'urn:oasis:names:specification:docbook:dtd:xml:4.1.2', ); foreach ($urls AS $url) { $p = parse_url($url); echo $url, PHP_EOL; print_r($p); echo PHP_EOL; }
Write the same algorithm in PHP as shown in this Java implementation.
import java.net.URI; import java.net.URISyntaxException; public class WebAddressParser{ public static void main(String[] args){ parseAddress("foo: parseAddress("urn:example:animal:ferret:nose"); } static void parseAddress(String a){ System.out.println("Parsing " + a); try{ URI u = new URI(a); System.out.println("\tscheme = " + u.getScheme()); System.out.println("\tdomain = " + u.getHost()); System.out.println("\tport = " + (-1==u.getPort()?"default":u.getPort())); System.out.println("\tpath = " + (null==u.getPath()?u.getSchemeSpecificPart():u.getPath())); System.out.println("\tquery = " + u.getQuery()); System.out.println("\tfragment = " + u.getFragment()); } catch (URISyntaxException x){ System.err.println("Oops: " + x); } } }
<?php $urls = array( 'foo://example.com:8042/over/there?name=ferret#nose', 'urn:example:animal:ferret:nose', 'jdbc:mysql://test_user:ouupppssss@localhost:3306/sakila?profileSQL=true', 'ftp://ftp.is.co.za/rfc/rfc1808.txt', 'http://www.ietf.org/rfc/rfc2396.txt#header1', 'ldap://[2001:db8::7]/c=GB?objectClass=one&objectClass=two', 'mailto:John.Doe@example.com', 'news:comp.infosystems.www.servers.unix', 'tel:+1-816-555-1212', 'telnet://192.0.2.16:80/', 'urn:oasis:names:specification:docbook:dtd:xml:4.1.2', ); foreach ($urls AS $url) { $p = parse_url($url); echo $url, PHP_EOL; print_r($p); echo PHP_EOL; }
Rewrite the snippet below in PHP so it works the same as the original Java code.
import java.net.URI; import java.net.URISyntaxException; public class WebAddressParser{ public static void main(String[] args){ parseAddress("foo: parseAddress("urn:example:animal:ferret:nose"); } static void parseAddress(String a){ System.out.println("Parsing " + a); try{ URI u = new URI(a); System.out.println("\tscheme = " + u.getScheme()); System.out.println("\tdomain = " + u.getHost()); System.out.println("\tport = " + (-1==u.getPort()?"default":u.getPort())); System.out.println("\tpath = " + (null==u.getPath()?u.getSchemeSpecificPart():u.getPath())); System.out.println("\tquery = " + u.getQuery()); System.out.println("\tfragment = " + u.getFragment()); } catch (URISyntaxException x){ System.err.println("Oops: " + x); } } }
<?php $urls = array( 'foo://example.com:8042/over/there?name=ferret#nose', 'urn:example:animal:ferret:nose', 'jdbc:mysql://test_user:ouupppssss@localhost:3306/sakila?profileSQL=true', 'ftp://ftp.is.co.za/rfc/rfc1808.txt', 'http://www.ietf.org/rfc/rfc2396.txt#header1', 'ldap://[2001:db8::7]/c=GB?objectClass=one&objectClass=two', 'mailto:John.Doe@example.com', 'news:comp.infosystems.www.servers.unix', 'tel:+1-816-555-1212', 'telnet://192.0.2.16:80/', 'urn:oasis:names:specification:docbook:dtd:xml:4.1.2', ); foreach ($urls AS $url) { $p = parse_url($url); echo $url, PHP_EOL; print_r($p); echo PHP_EOL; }
Translate this program into PHP but keep the logic exactly as in Java.
import java.net.URI; import java.net.URISyntaxException; public class WebAddressParser{ public static void main(String[] args){ parseAddress("foo: parseAddress("urn:example:animal:ferret:nose"); } static void parseAddress(String a){ System.out.println("Parsing " + a); try{ URI u = new URI(a); System.out.println("\tscheme = " + u.getScheme()); System.out.println("\tdomain = " + u.getHost()); System.out.println("\tport = " + (-1==u.getPort()?"default":u.getPort())); System.out.println("\tpath = " + (null==u.getPath()?u.getSchemeSpecificPart():u.getPath())); System.out.println("\tquery = " + u.getQuery()); System.out.println("\tfragment = " + u.getFragment()); } catch (URISyntaxException x){ System.err.println("Oops: " + x); } } }
<?php $urls = array( 'foo://example.com:8042/over/there?name=ferret#nose', 'urn:example:animal:ferret:nose', 'jdbc:mysql://test_user:ouupppssss@localhost:3306/sakila?profileSQL=true', 'ftp://ftp.is.co.za/rfc/rfc1808.txt', 'http://www.ietf.org/rfc/rfc2396.txt#header1', 'ldap://[2001:db8::7]/c=GB?objectClass=one&objectClass=two', 'mailto:John.Doe@example.com', 'news:comp.infosystems.www.servers.unix', 'tel:+1-816-555-1212', 'telnet://192.0.2.16:80/', 'urn:oasis:names:specification:docbook:dtd:xml:4.1.2', ); foreach ($urls AS $url) { $p = parse_url($url); echo $url, PHP_EOL; print_r($p); echo PHP_EOL; }
Write the same code in PHP as shown below in Java.
public static void main(String... args){ HashMap<String, Integer> vars = new HashMap<String, Integer>(); vars.put("Variable name", 3); vars.put("Next variable name", 5); Scanner sc = new Scanner(System.in); String str = sc.next(); vars.put(str, sc.nextInt()); System.out.println(vars.get("Variable name")); System.out.println(vars.get(str)); }
<?php $varname = rtrim(fgets(STDIN)); # type in "foo" on standard input $$varname = 42; echo "$foo\n"; # prints "42" ?>
Translate this program into PHP but keep the logic exactly as in Java.
public static void main(String... args){ HashMap<String, Integer> vars = new HashMap<String, Integer>(); vars.put("Variable name", 3); vars.put("Next variable name", 5); Scanner sc = new Scanner(System.in); String str = sc.next(); vars.put(str, sc.nextInt()); System.out.println(vars.get("Variable name")); System.out.println(vars.get(str)); }
<?php $varname = rtrim(fgets(STDIN)); # type in "foo" on standard input $$varname = 42; echo "$foo\n"; # prints "42" ?>
Transform the following Java implementation into PHP, maintaining the same output and logic.
import java.lang.reflect.Method; public class ListMethods { public int examplePublicInstanceMethod(char c, double d) { return 42; } private boolean examplePrivateInstanceMethod(String s) { return true; } public static void main(String[] args) { Class clazz = ListMethods.class; System.out.println("All public methods (including inherited):"); for (Method m : clazz.getMethods()) { System.out.println(m); } System.out.println(); System.out.println("All declared methods (excluding inherited):"); for (Method m : clazz.getDeclaredMethods()) { System.out.println(m); } } }
<? class Foo { function bar(int $x) { } } $method_names = get_class_methods('Foo'); foreach ($method_names as $name) { echo "$name\n"; $method_info = new ReflectionMethod('Foo', $name); echo $method_info; } ?>
Change the following Java code into PHP without altering its purpose.
import java.lang.reflect.Method; public class ListMethods { public int examplePublicInstanceMethod(char c, double d) { return 42; } private boolean examplePrivateInstanceMethod(String s) { return true; } public static void main(String[] args) { Class clazz = ListMethods.class; System.out.println("All public methods (including inherited):"); for (Method m : clazz.getMethods()) { System.out.println(m); } System.out.println(); System.out.println("All declared methods (excluding inherited):"); for (Method m : clazz.getDeclaredMethods()) { System.out.println(m); } } }
<? class Foo { function bar(int $x) { } } $method_names = get_class_methods('Foo'); foreach ($method_names as $name) { echo "$name\n"; $method_info = new ReflectionMethod('Foo', $name); echo $method_info; } ?>
Keep all operations the same but rewrite the snippet in PHP.
import java.lang.reflect.Method; class Example { public int foo(int x) { return 42 + x; } } public class Main { public static void main(String[] args) throws Exception { Object example = new Example(); String name = "foo"; Class<?> clazz = example.getClass(); Method meth = clazz.getMethod(name, int.class); Object result = meth.invoke(example, 5); System.out.println(result); } }
<?php class Example { function foo($x) { return 42 + $x; } } $example = new Example(); $name = 'foo'; echo $example->$name(5), "\n"; // prints "47" echo call_user_func(array($example, $name), 5), "\n"; ?>
Change the programming language of this snippet from Java to PHP without modifying what it does.
import java.lang.reflect.Method; class Example { public int foo(int x) { return 42 + x; } } public class Main { public static void main(String[] args) throws Exception { Object example = new Example(); String name = "foo"; Class<?> clazz = example.getClass(); Method meth = clazz.getMethod(name, int.class); Object result = meth.invoke(example, 5); System.out.println(result); } }
<?php class Example { function foo($x) { return 42 + $x; } } $example = new Example(); $name = 'foo'; echo $example->$name(5), "\n"; // prints "47" echo call_user_func(array($example, $name), 5), "\n"; ?>
Preserve the algorithm and functionality while converting the code from Java to PHP.
int a; double b; AClassNameHere c;
<?php # NULL typed variable $null = NULL; var_dump($null); // output: null # defining a boolean $boolean = true; var_dump($boolean); // output: boolean true $boolean = false; var_dump($boolean); // output: boolean false # bool and boolean is the same $boolean = (bool)1; var_dump($boolean); // output: boolean true $boolean = (boolean)1; var_dump($boolean); // output: boolean true $boolean = (bool)0; var_dump($boolean); // output: boolean false $boolean = (boolean)0; var_dump($boolean); // output: boolean false # defining an integer $int = 0; var_dump($int); // output: int 0 # defining a float, $float = 0.01; var_dump($float); // output: float 0.01 # which is also identical to "real" and "double" var_dump((double)$float); // output: float 0.01 var_dump((real)$float); // output: float 0.01 # casting back to int (auto flooring the value) var_dump((int)$float); // output: int 0 var_dump((int)($float+1)); // output: int 1 var_dump((int)($float+1.9)); // output: int 1 # defining a string $string = 'string'; var_dump($string); // output: string 'string' (length=6) # referencing a variable (there are no pointers in PHP). $another_string = &$string; var_dump($another_string); $string = "I'm the same string!"; var_dump($another_string); # "deleting" a variable from memory unset($another_string); $string = 'string'; $parsed_string = "This is a $string"; var_dump($parsed_string); $parsed_string .= " with another {$string}"; var_dump($parsed_string); # with string parsing $heredoc = <<<HEREDOC This is the content of \$string: {$string} HEREDOC; var_dump($heredoc); # without string parsing (notice the single quotes surrounding NOWDOC) $nowdoc = <<<'NOWDOC' This is the content of \$string: {$string} NOWDOC; var_dump($nowdoc); # as of PHP5, defining an object typed stdClass => standard class $stdObject = new stdClass(); var_dump($stdObject); # defining an object typed Foo class Foo {} $foo = new Foo(); var_dump($foo); # defining an empty array $array = array(); var_dump($array); $assoc = array( 0 => $int, 'integer' => $int, 1 => $float, 'float' => $float, 2 => $string, 'string' => $string, 3 => NULL, // <=== key 3 is NULL 3, // <=== this is a value, not a key (key is 4) 5 => $stdObject, 'Foo' => $foo, ); var_dump($assoc); function a_function() { # not reachable var_dump(isset($foo)); // output: boolean false global $foo; # "global" (reachable) inside a_function()'s scope var_dump(isset($foo)); // output: boolean true } a_function();
Change the programming language of this snippet from Java to PHP without modifying what it does.
int a; double b; AClassNameHere c;
<?php # NULL typed variable $null = NULL; var_dump($null); // output: null # defining a boolean $boolean = true; var_dump($boolean); // output: boolean true $boolean = false; var_dump($boolean); // output: boolean false # bool and boolean is the same $boolean = (bool)1; var_dump($boolean); // output: boolean true $boolean = (boolean)1; var_dump($boolean); // output: boolean true $boolean = (bool)0; var_dump($boolean); // output: boolean false $boolean = (boolean)0; var_dump($boolean); // output: boolean false # defining an integer $int = 0; var_dump($int); // output: int 0 # defining a float, $float = 0.01; var_dump($float); // output: float 0.01 # which is also identical to "real" and "double" var_dump((double)$float); // output: float 0.01 var_dump((real)$float); // output: float 0.01 # casting back to int (auto flooring the value) var_dump((int)$float); // output: int 0 var_dump((int)($float+1)); // output: int 1 var_dump((int)($float+1.9)); // output: int 1 # defining a string $string = 'string'; var_dump($string); // output: string 'string' (length=6) # referencing a variable (there are no pointers in PHP). $another_string = &$string; var_dump($another_string); $string = "I'm the same string!"; var_dump($another_string); # "deleting" a variable from memory unset($another_string); $string = 'string'; $parsed_string = "This is a $string"; var_dump($parsed_string); $parsed_string .= " with another {$string}"; var_dump($parsed_string); # with string parsing $heredoc = <<<HEREDOC This is the content of \$string: {$string} HEREDOC; var_dump($heredoc); # without string parsing (notice the single quotes surrounding NOWDOC) $nowdoc = <<<'NOWDOC' This is the content of \$string: {$string} NOWDOC; var_dump($nowdoc); # as of PHP5, defining an object typed stdClass => standard class $stdObject = new stdClass(); var_dump($stdObject); # defining an object typed Foo class Foo {} $foo = new Foo(); var_dump($foo); # defining an empty array $array = array(); var_dump($array); $assoc = array( 0 => $int, 'integer' => $int, 1 => $float, 'float' => $float, 2 => $string, 'string' => $string, 3 => NULL, // <=== key 3 is NULL 3, // <=== this is a value, not a key (key is 4) 5 => $stdObject, 'Foo' => $foo, ); var_dump($assoc); function a_function() { # not reachable var_dump(isset($foo)); // output: boolean false global $foo; # "global" (reachable) inside a_function()'s scope var_dump(isset($foo)); // output: boolean true } a_function();
Translate the given Java code snippet into PHP without altering its behavior.
import java.io.File; import java.lang.reflect.Method; import java.net.URI; import java.util.Arrays; import javax.tools.JavaCompiler; import javax.tools.SimpleJavaFileObject; import javax.tools.ToolProvider; public class Eval { private static final String CLASS_NAME = "TempPleaseDeleteMe"; private static class StringCompiler extends SimpleJavaFileObject { final String m_sourceCode; private StringCompiler( final String sourceCode ) { super( URI.create( "string: m_sourceCode = sourceCode; } @Override public CharSequence getCharContent( final boolean ignoreEncodingErrors ) { return m_sourceCode; } private boolean compile() { final JavaCompiler javac = ToolProvider.getSystemJavaCompiler(); return javac.getTask( null, javac.getStandardFileManager( null, null, null ), null, null, null, Arrays.asList( this ) ).call(); } private double callEval( final double x ) throws Exception { final Class<?> clarse = Class.forName( CLASS_NAME ); final Method eval = clarse.getMethod( "eval", double.class ); return ( Double ) eval.invoke( null, x ); } } public static double evalWithX( final String code, final double x ) throws Exception { final StringCompiler sc = new StringCompiler( "class " + CLASS_NAME + "{public static double eval(double x){return (" + code + ");}}" ); if ( ! sc.compile() ) throw new RuntimeException( "Compiler error" ); return sc.callEval( x ); } public static void main( final String [] args ) throws Exception { final String expression = args [ 0 ]; final double x1 = Double.parseDouble( args [ 1 ] ); final double x2 = Double.parseDouble( args [ 2 ] ); System.out.println( evalWithX( expression, x1 ) - evalWithX( expression, x2 ) ); } }
<?php function eval_with_x($code, $a, $b) { $x = $a; $first = eval($code); $x = $b; $second = eval($code); return $second - $first; } echo eval_with_x('return 3 * $x;', 5, 10), "\n"; # Prints "15". ?>
Change the following Java code into PHP without altering its purpose.
import java.io.File; import java.lang.reflect.Method; import java.net.URI; import java.util.Arrays; import javax.tools.JavaCompiler; import javax.tools.SimpleJavaFileObject; import javax.tools.ToolProvider; public class Eval { private static final String CLASS_NAME = "TempPleaseDeleteMe"; private static class StringCompiler extends SimpleJavaFileObject { final String m_sourceCode; private StringCompiler( final String sourceCode ) { super( URI.create( "string: m_sourceCode = sourceCode; } @Override public CharSequence getCharContent( final boolean ignoreEncodingErrors ) { return m_sourceCode; } private boolean compile() { final JavaCompiler javac = ToolProvider.getSystemJavaCompiler(); return javac.getTask( null, javac.getStandardFileManager( null, null, null ), null, null, null, Arrays.asList( this ) ).call(); } private double callEval( final double x ) throws Exception { final Class<?> clarse = Class.forName( CLASS_NAME ); final Method eval = clarse.getMethod( "eval", double.class ); return ( Double ) eval.invoke( null, x ); } } public static double evalWithX( final String code, final double x ) throws Exception { final StringCompiler sc = new StringCompiler( "class " + CLASS_NAME + "{public static double eval(double x){return (" + code + ");}}" ); if ( ! sc.compile() ) throw new RuntimeException( "Compiler error" ); return sc.callEval( x ); } public static void main( final String [] args ) throws Exception { final String expression = args [ 0 ]; final double x1 = Double.parseDouble( args [ 1 ] ); final double x2 = Double.parseDouble( args [ 2 ] ); System.out.println( evalWithX( expression, x1 ) - evalWithX( expression, x2 ) ); } }
<?php function eval_with_x($code, $a, $b) { $x = $a; $first = eval($code); $x = $b; $second = eval($code); return $second - $first; } echo eval_with_x('return 3 * $x;', 5, 10), "\n"; # Prints "15". ?>