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 | // $Id$ |
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19 | |
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20 | |
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21 | /** |
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22 | * Replace clone() |
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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/language.oop5.cloning |
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27 | * @author Aidan Lister <aidan@php.net> |
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28 | * @version $Revision: 1.3 $ |
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29 | * @since PHP 5.0.0 |
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30 | * @require PHP 4.0.0 (user_error) |
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31 | */ |
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32 | if (version_compare(phpversion(), '5.0') === -1) { |
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33 | // Needs to be wrapped in eval as clone is a keyword in PHP5 |
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34 | eval(' |
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35 | function clone($object) |
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36 | { |
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37 | // Sanity check |
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38 | if (!is_object($object)) { |
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39 | user_error(\'clone() __clone method called on non-object\', E_USER_WARNING); |
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40 | return; |
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41 | } |
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42 | |
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43 | // Use serialize/unserialize trick to deep copy the object |
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44 | $object = unserialize(serialize($object)); |
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45 | |
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46 | // If there is a __clone method call it on the "new" class |
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47 | if (method_exists($object, \'__clone\')) { |
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48 | $object->__clone(); |
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49 | } |
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50 | |
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51 | return $object; |
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52 | } |
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53 | '); |
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54 | } |
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55 | |
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56 | ?> |
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