47 lines
1.8 KiB
PHP
47 lines
1.8 KiB
PHP
<?php
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2004 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 3.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/3_0.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Aidan Lister <aidan@php.net> |
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// +----------------------------------------------------------------------+
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//
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// $Id: is_a.php,v 1.2 2005/11/21 10:57:23 ggiunta Exp $
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/**
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* Replace function is_a()
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*
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* @category PHP
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* @package PHP_Compat
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* @link http://php.net/function.is_a
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* @author Aidan Lister <aidan@php.net>
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* @version $Revision: 1.2 $
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* @since PHP 4.2.0
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* @require PHP 4.0.0 (user_error) (is_subclass_of)
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*/
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if (!function_exists('is_a')) {
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function is_a($object, $class)
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{
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if (!is_object($object)) {
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return false;
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}
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if (get_class($object) == strtolower($class)) {
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return true;
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} else {
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return is_subclass_of($object, $class);
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}
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}
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}
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?>
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