| 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: Aidan Lister <aidan@php.net> | |
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| 16 | // +----------------------------------------------------------------------+ |
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| 17 | // |
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| 18 | // $Id: is_a.php,v 1.2 2005/11/21 10:57:23 ggiunta Exp $ |
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| 19 | |
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| 20 | |
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| 21 | /** |
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| 22 | * Replace function is_a() |
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| 23 | * |
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| 24 | * @category PHP |
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| 25 | * @package PHP_Compat |
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| 26 | * @link http://php.net/function.is_a |
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| 27 | * @author Aidan Lister <aidan@php.net> |
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| 28 | * @version $Revision: 1.2 $ |
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| 29 | * @since PHP 4.2.0 |
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| 30 | * @require PHP 4.0.0 (user_error) (is_subclass_of) |
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| 31 | */ |
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| 32 | if (!function_exists('is_a')) { |
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| 33 | function is_a($object, $class) |
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| 34 | { |
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| 35 | if (!is_object($object)) { |
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| 36 | return false; |
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| 37 | } |
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| 38 | |
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| 39 | if (get_class($object) == strtolower($class)) { |
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| 40 | return true; |
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| 41 | } else { |
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| 42 | return is_subclass_of($object, $class); |
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| 43 | } |
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| 44 | } |
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| 45 | } |
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| 46 | |
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| 47 | ?> |
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