<?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 1.2 2006/10/11 22:30:55 eric 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: 1.2 $
 * @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 ) );
	}
}


