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   1  <?php
   2  // +----------------------------------------------------------------------+

   3  // | PHP Version 4                                                        |

   4  // +----------------------------------------------------------------------+

   5  // | Copyright (c) 1997-2004 The PHP Group                                |

   6  // +----------------------------------------------------------------------+

   7  // | This source file is subject to version 3.0 of the PHP license,       |

   8  // | that is bundled with this package in the file LICENSE, and is        |

   9  // | available at through the world-wide-web at                           |

  10  // | http://www.php.net/license/3_0.txt.                                  |

  11  // | If you did not receive a copy of the PHP license and are unable to   |

  12  // | obtain it through the world-wide-web, please send a note to          |

  13  // | license@php.net so we can mail you a copy immediately.               |

  14  // +----------------------------------------------------------------------+

  15  // | Authors: Aidan Lister <aidan@php.net>                                |

  16  // +----------------------------------------------------------------------+

  17  //

  18  // $Id: array_search.php,v 1.6 2005/01/26 04:55:13 aidan Exp $

  19  
  20  
  21  /**

  22   * Replace array_search()

  23   *

  24   * @category    PHP

  25   * @package     PHP_Compat

  26   * @link        http://php.net/function.array_search

  27   * @author      Aidan Lister <aidan@php.net>

  28   * @author      Thiemo Mättig (http://maettig.com/)

  29   * @version     $Revision: 1.6 $

  30   * @since       PHP 4.0.5

  31   * @require     PHP 4.0.0 (user_error)

  32   */
  33  if (!function_exists('array_search')) {
  34      function array_search($needle, $haystack, $strict = false)
  35      {
  36          if (!is_array($haystack)) {
  37              user_error('array_search() Wrong datatype for second argument', E_USER_WARNING);
  38              return false;
  39          }
  40  
  41          foreach ($haystack as $key => $value) {
  42              if ($strict ? $value === $needle : $value == $needle) {
  43                  return $key;
  44              }
  45          }
  46  
  47          return false;
  48      }
  49  }
  50  
  51  ?>