tierapp/item/read.php

<?php
header("Access-Control-Allow-Origin: *");
header("Content-Type: application/json; charset=UTF-8");
include_once '../config/Database.php';
include_once '../models/Item.php';

$database = new Database();
$db = $database->getConnection();

$item = new Item($db);

$item_type = isset($_GET['item_type']) ? $_GET['item_type'] : null;
$tier_list_id = isset($_GET['tier_list_id']) ? $_GET['tier_list_id'] : null;

$stmt = $item->read($item_type, $tier_list_id);
$items_arr = array();

while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
    extract($row);

    $item_obj = array(
        "id" => (int)$id,
        "title" => $title,
        "image_path" => $image_path,
        "imageId" => is_numeric($image_path) ? (int)$image_path : null,
        "ranking" => (int)$ranking,
        "itemType" => (int)$item_type,
        "item_type" => (int)$item_type,
        "tierListId" => is_null($tier_list_id) ? null : (int)$tier_list_id
    );

    array_push($items_arr, $item_obj);
}

http_response_code(200);
echo json_encode($items_arr);
?>