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1 <?php 1 <?php
2 // +----------------------------------------------------------------------+ 2 // +----------------------------------------------------------------------+
3 // | PHP Version 4 | 3 // | PHP Version 4 |
4 // +----------------------------------------------------------------------+ 4 // +----------------------------------------------------------------------+
5 // | Copyright (c) 1997-2004 The PHP Group | 5 // | Copyright (c) 1997-2004 The PHP Group |
6 // +----------------------------------------------------------------------+ 6 // +----------------------------------------------------------------------+
7 // | This source file is subject to version 3.0 of the PHP license, | 7 // | This source file is subject to version 3.0 of the PHP license, |
8 // | that is bundled with this package in the file LICENSE, and is | 8 // | that is bundled with this package in the file LICENSE, and is |
9 // | available at through the world-wide-web at | 9 // | available at through the world-wide-web at |
10 // | http://www.php.net/license/3_0.txt. | 10 // | http://www.php.net/license/3_0.txt. |
11 // | If you did not receive a copy of the PHP license and are unable to | 11 // | If you did not receive a copy of the PHP license and are unable to |
12 // | obtain it through the world-wide-web, please send a note to | 12 // | obtain it through the world-wide-web, please send a note to |
13 // | license@php.net so we can mail you a copy immediately. | 13 // | license@php.net so we can mail you a copy immediately. |
14 // +----------------------------------------------------------------------+ 14 // +----------------------------------------------------------------------+
15 // | Authors: Aidan Lister <aidan@php.net> | 15 // | Authors: Aidan Lister <aidan@php.net> |
16 // +----------------------------------------------------------------------+ 16 // +----------------------------------------------------------------------+
17 // 17 //
18 // $Id: array_diff_key.php,v 1.4 2005/01/26 04:55:13 aidan Exp $ 18 // $Id: array_diff_key.php,v 1.4 2005/01/26 04:55:13 aidan Exp $
19   19  
20   20  
21 /** 21 /**
22 * Replace array_diff_key() 22 * Replace array_diff_key()
23 * 23 *
24 * @category PHP 24 * @category PHP
25 * @package PHP_Compat 25 * @package PHP_Compat
26 * @link http://php.net/function.array_diff_key 26 * @link http://php.net/function.array_diff_key
27 * @author Tom Buskens <ortega@php.net> 27 * @author Tom Buskens <ortega@php.net>
28 * @version $Revision: 1.4 $ 28 * @version $Revision: 1.4 $
29 * @since PHP 5.0.2 29 * @since PHP 5.0.2
30 * @require PHP 4.0.0 (user_error) 30 * @require PHP 4.0.0 (user_error)
31 */ 31 */
32 if (!function_exists('array_diff_key')) { 32 if (!function_exists('array_diff_key')) {
33 function array_diff_key() 33 function array_diff_key()
34 { 34 {
35 $args = func_get_args(); 35 $args = func_get_args();
36 if (count($args) < 2) { 36 if (count($args) < 2) {
37 user_error('Wrong parameter count for array_diff_key()', E_USER_WARNING); 37 user_error('Wrong parameter count for array_diff_key()', E_USER_WARNING);
38 return; 38 return;
39 } 39 }
40   40  
41 // Check arrays 41 // Check arrays
42 $array_count = count($args); 42 $array_count = count($args);
43 for ($i = 0; $i !== $array_count; $i++) { 43 for ($i = 0; $i !== $array_count; $i++) {
44 if (!is_array($args[$i])) { 44 if (!is_array($args[$i])) {
45 user_error('array_diff_key() Argument #' . 45 user_error('array_diff_key() Argument #' .
46 ($i + 1) . ' is not an array', E_USER_WARNING); 46 ($i + 1) . ' is not an array', E_USER_WARNING);
47 return; 47 return;
48 } 48 }
49 } 49 }
50   50  
51 $result = $args[0]; 51 $result = $args[0];
52 foreach ($args[0] as $key1 => $value1) { 52 foreach ($args[0] as $key1 => $value1) {
53 for ($i = 1; $i !== $array_count; $i++) { 53 for ($i = 1; $i !== $array_count; $i++) {
54 foreach ($args[$i] as $key2 => $value2) { 54 foreach ($args[$i] as $key2 => $value2) {
55 if ((string) $key1 === (string) $key2) { 55 if ((string) $key1 === (string) $key2) {
56 unset($result[$key2]); 56 unset($result[$key2]);
57 break 2; 57 break 2;
58 } 58 }
59 } 59 }
60 } 60 }
61 } 61 }
62 return $result; 62 return $result;
63 } 63 }
64 } 64 }
65   65  
66 ?> 66 ?>
67 67