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<?php
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2004 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 3.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/3_0.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Aidan Lister <aidan@php.net> |
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// +----------------------------------------------------------------------+
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//
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// $Id: array_diff_ukey.php,v 1.4 2005/01/26 04:55:13 aidan Exp $
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/**
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* Replace array_diff_ukey()
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*
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* @category PHP
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* @package PHP_Compat
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* @link http://php.net/function.array_diff_ukey
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* @author Tom Buskens <ortega@php.net>
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* @version $Revision: 1.4 $
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* @since PHP 5.0.2
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* @require PHP 4.0.6 (is_callable)
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*/
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if (!function_exists('array_diff_ukey')) {
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function array_diff_ukey()
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{
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$args = func_get_args();
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if (count($args) < 3) {
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user_error('Wrong parameter count for array_diff_ukey()', E_USER_WARNING);
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return;
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}
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// Get compare function
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$compare_func = array_pop($args);
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if (!is_callable($compare_func)) {
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if (is_array($compare_func)) {
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$compare_func = $compare_func[0].'::'.$compare_func[1];
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}
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user_error('array_diff_ukey() Not a valid callback ' .
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$compare_func, E_USER_WARNING);
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return;
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}
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// Check arrays
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$array_count = count($args);
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for ($i = 0; $i !== $array_count; $i++) {
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if (!is_array($args[$i])) {
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user_error('array_diff_ukey() Argument #' .
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($i + 1) . ' is not an array', E_USER_WARNING);
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return;
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}
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}
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// Compare entries
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$result = $args[0];
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foreach ($args[0] as $key1 => $value1) {
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for ($i = 1; $i !== $array_count; $i++) {
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foreach ($args[$i] as $key2 => $value2) {
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if (!(call_user_func($compare_func, (string) $key1, (string) $key2))) {
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unset($result[$key1]);
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break 2;
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}
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}
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}
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}
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return $result;
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}
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}
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?>
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