1 | <?php
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2 | // +----------------------------------------------------------------------+
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3 | // | PHP Version 4 |
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4 | // +----------------------------------------------------------------------+
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5 | // | Copyright (c) 1997-2004 The PHP Group |
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6 | // +----------------------------------------------------------------------+
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7 | // | This source file is subject to version 3.0 of the PHP license, |
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8 | // | that is bundled with this package in the file LICENSE, and is |
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9 | // | available at through the world-wide-web at |
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10 | // | http://www.php.net/license/3_0.txt. |
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11 | // | If you did not receive a copy of the PHP license and are unable to |
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12 | // | obtain it through the world-wide-web, please send a note to |
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13 | // | license@php.net so we can mail you a copy immediately. |
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14 | // +----------------------------------------------------------------------+
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15 | // | Authors: Stephan Schmidt <schst@php.net> |
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16 | // | Aidan Lister <aidan@php.net> |
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17 | // +----------------------------------------------------------------------+
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18 | //
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19 | // $Id: array_udiff.php,v 1.10 2005/01/26 04:55:13 aidan Exp $
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20 |
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21 |
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22 | /**
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23 | * Replace array_udiff()
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24 | *
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25 | * @category PHP
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26 | * @package PHP_Compat
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27 | * @link http://php.net/function.array_udiff
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28 | * @author Stephan Schmidt <schst@php.net>
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29 | * @author Aidan Lister <aidan@php.net>
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30 | * @version $Revision: 1.10 $
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31 | * @since PHP 5
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32 | * @require PHP 4.0.6 (is_callable)
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33 | */
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34 | if (!function_exists('array_udiff')) {
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35 | function array_udiff()
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36 | {
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37 | $args = func_get_args();
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38 |
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39 | if (count($args) < 3) {
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40 | user_error('Wrong parameter count for array_udiff()', E_USER_WARNING);
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41 | return;
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42 | }
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43 |
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44 | // Get compare function
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45 | $compare_func = array_pop($args);
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46 | if (!is_callable($compare_func)) {
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47 | if (is_array($compare_func)) {
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48 | $compare_func = $compare_func[0] . '::' . $compare_func[1];
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49 | }
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50 | user_error('array_udiff() Not a valid callback ' .
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51 | $compare_func, E_USER_WARNING);
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52 | return;
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53 | }
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54 |
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55 | // Check arrays
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56 | $cnt = count($args);
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57 | for ($i = 0; $i < $cnt; $i++) {
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58 | if (!is_array($args[$i])) {
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59 | user_error('array_udiff() Argument #' .
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60 | ($i + 1). ' is not an array', E_USER_WARNING);
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61 | return;
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62 | }
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63 | }
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64 |
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65 | $diff = array ();
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66 | // Traverse values of the first array
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67 | foreach ($args[0] as $key => $value) {
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68 | // Check all arrays
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69 | for ($i = 1; $i < $cnt; $i++) {
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70 | foreach ($args[$i] as $cmp_value) {
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71 | $result = call_user_func($compare_func, $value, $cmp_value);
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72 | if ($result === 0) {
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73 | continue 3;
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74 | }
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75 | }
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76 | }
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77 | $diff[$key] = $value;
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78 | }
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79 | return $diff;
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80 | }
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81 | }
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82 |
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83 | ?> |
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