Viewing file:  array_key_exists.php (2.17 KB) -rw-rw-rw-
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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: Aidan Lister <aidan@php.net> |
// +----------------------------------------------------------------------+
//
// $Id: array_key_exists.php,v 1.7 2005/01/26 04:55:13 aidan Exp $
/**
* Replace array_key_exists()
*
* @category PHP
* @package PHP_Compat
* @link http://php.net/function.array_key_exists
* @author Aidan Lister <aidan@php.net>
* @version $Revision: 1.7 $
* @since PHP 4.1.0
* @require PHP 4.0.0 (user_error)
*/
if (!function_exists('array_key_exists')) {
function array_key_exists($key, $search)
{
if (!is_scalar($key)) {
user_error('array_key_exists() The first argument should be either a string or an integer',
E_USER_WARNING);
return false;
}
if (is_object($search)) {
$search = get_object_vars($search);
}
if (!is_array($search)) {
user_error('array_key_exists() The second argument should be either an array or an object',
E_USER_WARNING);
return false;
}
return in_array($key, array_keys($search));
}
}
?>
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