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<?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: Stephan Schmidt <schst@php.net> |
// | Aidan Lister <aidan@php.net> |
// +----------------------------------------------------------------------+
//
// $Id: array_udiff.php,v 1.10 2005/01/26 04:55:13 aidan Exp $
/**
* Replace array_udiff()
*
* @category PHP
* @package PHP_Compat
* @link http://php.net/function.array_udiff
* @author Stephan Schmidt <schst@php.net>
* @author Aidan Lister <aidan@php.net>
* @version $Revision: 1.10 $
* @since PHP 5
* @require PHP 4.0.6 (is_callable)
*/
if (!function_exists('array_udiff')) {
function array_udiff()
{
$args = func_get_args();
if (count($args) < 3) {
user_error('Wrong parameter count for array_udiff()', E_USER_WARNING);
return;
}
// Get compare function
$compare_func = array_pop($args);
if (!is_callable($compare_func)) {
if (is_array($compare_func)) {
$compare_func = $compare_func[0] . '::' . $compare_func[1];
}
user_error('array_udiff() Not a valid callback ' .
$compare_func, E_USER_WARNING);
return;
}
// Check arrays
$cnt = count($args);
for ($i = 0; $i < $cnt; $i++) {
if (!is_array($args[$i])) {
user_error('array_udiff() Argument #' .
($i + 1). ' is not an array', E_USER_WARNING);
return;
}
}
$diff = array ();
// Traverse values of the first array
foreach ($args[0] as $key => $value) {
// Check all arrays
for ($i = 1; $i < $cnt; $i++) {
foreach ($args[$i] as $cmp_value) {
$result = call_user_func($compare_func, $value, $cmp_value);
if ($result === 0) {
continue 3;
}
}
}
$diff[$key] = $value;
}
return $diff;
}
}
?>
|