<?php // +----------------------------------------------------------------------+ // | PHP Version 4 | // +----------------------------------------------------------------------+ // | Copyright (c) 1997-2004 The PHP Group | // +----------------------------------------------------------------------+ // | This source file is subject to version 3.0 of the PHP license, | // | that is bundled with this package in the file LICENSE, and is | // | available at through the world-wide-web at | // | http://www.php.net/license/3_0.txt. | // | If you did not receive a copy of the PHP license and are unable to | // | obtain it through the world-wide-web, please send a note to | // | license@php.net so we can mail you a copy immediately. | // +----------------------------------------------------------------------+ // | Authors: Aidan Lister <aidan@php.net> | // +----------------------------------------------------------------------+ // // $Id: array_diff_key.php,v 1.1 2005/07/23 05:56:02 Tony Exp $ /** * Replace array_diff_key() * * @category PHP * @package PHP_Compat * @link http://php.net/function.array_diff_key * @author Tom Buskens <ortega@php.net> * @version $Revision: 1.1 $ * @since PHP 5.0.2 * @require PHP 4.0.0 (user_error) */ if (!function_exists('array_diff_key')) { function array_diff_key() { $args = func_get_args(); if (count($args) < 2) { user_error('Wrong parameter count for array_diff_key()', E_USER_WARNING); return; } // Check arrays $array_count = count($args); for ($i = 0; $i !== $array_count; $i++) { if (!is_array($args[$i])) { user_error('array_diff_key() Argument #' . ($i + 1) . ' is not an array', E_USER_WARNING); return; } } $result = $args[0]; foreach ($args[0] as $key1 => $value1) { for ($i = 1; $i !== $array_count; $i++) { foreach ($args[$i] as $key2 => $value2) { if ((string) $key1 === (string) $key2) { unset($result[$key2]); break 2; } } } } return $result; } } ?>