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	<?php
	/**
	* Database Repair and Optimization Script.
	*
	* @package WordPress
	* @subpackage Database
	*/
	define( 'WP_REPAIRING', true );

	require_once dirname( __DIR__, 2 ) . '/wp-load.php';

	header( 'Content-Type: text/html; charset=utf-8' );
	?>
	<!DOCTYPE html>
	<html <?php language_attributes(); ?>>
	<head>
	<meta name="viewport" content="width=device-width" />
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="robots" content="noindex,nofollow" />
	<title><?php _e( 'WordPress &rsaquo; Database Repair' ); ?></title>
	<?php wp_admin_css( 'install', true ); ?>
	</head>
	<body class="wp-core-ui">
	<p id="logo"><a href="<?php echo esc_url( __( 'https://wordpress.org/' ) ); ?>"><?php _e( 'WordPress' ); ?></a></p>

	<?php

	if ( ! defined( 'WP_ALLOW_REPAIR' ) \|\| ! WP_ALLOW_REPAIR ) {

	echo '<h1 class="screen-reader-text">' .
	/* translators: Hidden accessibility text. */
	__( 'Allow automatic database repair' ) .
	'</h1>';

	echo '<p>';
	printf(
	/* translators: %s: wp-config.php */
	__( 'To allow use of this page to automatically repair database problems, please add the following line to your %s file. Once this line is added to your config, reload this page.' ),
	'<code>wp-config.php</code>'
	);
	echo "</p><p><code>define('WP_ALLOW_REPAIR', true);</code></p>";

	$default_keys = array_unique(
	array(
	'put your unique phrase here',
	/*
	* translators: This string should only be translated if wp-config-sample.php is localized.
	* You can check the localized release package or
	* https://i18n.svn.wordpress.org/<locale code>/branches/<wp version>/dist/wp-config-sample.php
	*/
	__( 'put your unique phrase here' ),
	)
	);
	$missing_key = false;
	$duplicated_keys = array();

	foreach ( array( 'AUTH_KEY', 'SECURE_AUTH_KEY', 'LOGGED_IN_KEY', 'NONCE_KEY', 'AUTH_SALT', 'SECURE_AUTH_SALT', 'LOGGED_IN_SALT', 'NONCE_SALT' ) as $key ) {
	if ( defined( $key ) ) {
	// Check for unique values of each key.
	$duplicated_keys[ constant( $key ) ] = isset( $duplicated_keys[ constant( $key ) ] );
	} else {
	// If a constant is not defined, it's missing.
	$missing_key = true;
	}
	}

	// If at least one key uses a default value, consider it duplicated.
	foreach ( $default_keys as $default_key ) {
	if ( isset( $duplicated_keys[ $default_key ] ) ) {
	$duplicated_keys[ $default_key ] = true;
	}
	}

	// Weed out all unique, non-default values.
	$duplicated_keys = array_filter( $duplicated_keys );

	if ( $duplicated_keys \|\| $missing_key ) {

	echo '<h2 class="screen-reader-text">' .
	/* translators: Hidden accessibility text. */
	__( 'Check secret keys' ) .
	'</h2>';

	/* translators: 1: wp-config.php, 2: Secret key service URL. */
	echo '<p>' . sprintf( __( 'While you are editing your %1$s file, take a moment to make sure you have all 8 keys and that they are unique. You can generate these using the <a href="%2$s">WordPress.org secret key service</a>.' ), '<code>wp-config.php</code>', 'https://api.wordpress.org/secret-key/1.1/salt/' ) . '</p>';
	}
	} elseif ( isset( $_GET['repair'] ) ) {

	echo '<h1 class="screen-reader-text">' .
	/* translators: Hidden accessibility text. */
	__( 'Database repair results' ) .
	'</h1>';

	$optimize = '2' === $_GET['repair'];
	$okay = true;
	$problems = array();

	$tables = $wpdb->tables();

	/**
	* Filters additional database tables to repair.
	*
	* @since 3.0.0
	*
	* @param string[] $tables Array of prefixed table names to be repaired.
	*/
	$tables = array_merge( $tables, (array) apply_filters( 'tables_to_repair', array() ) );

	// Loop over the tables, checking and repairing as needed.
	foreach ( $tables as $table ) {
	$check = $wpdb->get_row( "CHECK TABLE $table" );

	echo '<p>';
	if ( 'OK' === $check->Msg_text ) {
	/* translators: %s: Table name. */
	printf( __( 'The %s table is okay.' ), "<code>$table</code>" );
	} else {
	/* translators: 1: Table name, 2: Error message. */
	printf( __( 'The %1$s table is not okay. It is reporting the following error: %2$s. WordPress will attempt to repair this table…' ), "<code>$table</code>", "<code>$check->Msg_text</code>" );

	$repair = $wpdb->get_row( "REPAIR TABLE $table" );

	echo '<br />    ';
	if ( 'OK' === $repair->Msg_text ) {
	/* translators: %s: Table name. */
	printf( __( 'Successfully repaired the %s table.' ), "<code>$table</code>" );
	} else {
	/* translators: 1: Table name, 2: Error message. */
	printf( __( 'Failed to repair the %1$s table. Error: %2$s' ), "<code>$table</code>", "<code>$repair->Msg_text</code>" ) . '<br />';
	$problems[ $table ] = $repair->Msg_text;
	$okay = false;
	}
	}

	if ( $okay && $optimize ) {
	$analyze = $wpdb->get_row( "ANALYZE TABLE $table" );

	echo '<br />    ';
	if ( 'Table is already up to date' === $analyze->Msg_text ) {
	/* translators: %s: Table name. */
	printf( __( 'The %s table is already optimized.' ), "<code>$table</code>" );
	} else {
	$optimize = $wpdb->get_row( "OPTIMIZE TABLE $table" );

	echo '<br />    ';
	if ( 'OK' === $optimize->Msg_text \|\| 'Table is already up to date' === $optimize->Msg_text ) {
	/* translators: %s: Table name. */
	printf( __( 'Successfully optimized the %s table.' ), "<code>$table</code>" );
	} else {
	/* translators: 1: Table name. 2: Error message. */
	printf( __( 'Failed to optimize the %1$s table. Error: %2$s' ), "<code>$table</code>", "<code>$optimize->Msg_text</code>" );
	}
	}
	}
	echo '</p>';
	}

	if ( $problems ) {
	printf(
	/* translators: %s: URL to "Fixing WordPress" forum. */
	'<p>' . __( 'Some database problems could not be repaired. Please copy-and-paste the following list of errors to the <a href="%s">WordPress support forums</a> to get additional assistance.' ) . '</p>',
	__( 'https://wordpress.org/support/forum/how-to-and-troubleshooting' )
	);
	$problem_output = '';
	foreach ( $problems as $table => $problem ) {
	$problem_output .= "$table: $problem\n";
	}
	echo '<p><textarea name="errors" id="errors" rows="20" cols="60">' . esc_textarea( $problem_output ) . '</textarea></p>';
	} else {
	echo '<p>' . __( 'Repairs complete. Please remove the following line from wp-config.php to prevent this page from being used by unauthorized users.' ) . "</p><p><code>define('WP_ALLOW_REPAIR', true);</code></p>";
	}
	} else {

	echo '<h1 class="screen-reader-text">' .
	/* translators: Hidden accessibility text. */
	__( 'WordPress database repair' ) .
	'</h1>';

	if ( isset( $_GET['referrer'] ) && 'is_blog_installed' === $_GET['referrer'] ) {
	echo '<p>' . __( 'One or more database tables are unavailable. To allow WordPress to attempt to repair these tables, press the “Repair Database” button. Repairing can take a while, so please be patient.' ) . '</p>';
	} else {
	echo '<p>' . __( 'WordPress can automatically look for some common database problems and repair them. Repairing can take a while, so please be patient.' ) . '</p>';
	}
	?>
	<p class="step"><a class="button button-large" href="repair.php?repair=1"><?php _e( 'Repair Database' ); ?></a></p>
	<p><?php _e( 'WordPress can also attempt to optimize the database. This improves performance in some situations. Repairing and optimizing the database can take a long time and the database will be locked while optimizing.' ); ?></p>
	<p class="step"><a class="button button-large" href="repair.php?repair=2"><?php _e( 'Repair and Optimize Database' ); ?></a></p>
	<?php
	}
	?>
	</body>
	</html>