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 array_key_exists() |
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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.array_key_exists |
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27 | * @author Aidan Lister <aidan@php.net> |
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28 | * @version $Revision: 1.7 $ |
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29 | * @since PHP 4.1.0 |
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30 | * @require PHP 4.0.0 (user_error) |
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31 | */ |
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32 | if (!function_exists('array_key_exists')) { |
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33 | function array_key_exists($key, $search) |
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34 | { |
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35 | if (!is_scalar($key)) { |
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36 | user_error('array_key_exists() The first argument should be either a string or an integer', |
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37 | E_USER_WARNING); |
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38 | return false; |
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39 | } |
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40 | |
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41 | if (is_object($search)) { |
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42 | $search = get_object_vars($search); |
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43 | } |
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44 | |
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45 | if (!is_array($search)) { |
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46 | user_error('array_key_exists() The second argument should be either an array or an object', |
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47 | E_USER_WARNING); |
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48 | return false; |
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49 | } |
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50 | |
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51 | return in_array($key, array_keys($search)); |
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52 | } |
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53 | } |
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54 | |
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55 | ?> |
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