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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: stripos.php,v 1.13 2005/05/30 20:33:03 aidan Exp $

  19  
  20  
  21  /**

  22   * Replace stripos()

  23   *

  24   * @category    PHP

  25   * @package     PHP_Compat

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

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

  28   * @version     $Revision: 1.13 $

  29   * @since       PHP 5

  30   * @require     PHP 4.0.0 (user_error)

  31   */
  32  if (!function_exists('stripos')) {
  33      function stripos($haystack, $needle, $offset = null)
  34      {
  35          if (!is_scalar($haystack)) {
  36              user_error('stripos() expects parameter 1 to be string, ' .
  37                  gettype($haystack) . ' given', E_USER_WARNING);
  38              return false;
  39          }
  40  
  41          if (!is_scalar($needle)) {
  42              user_error('stripos() needle is not a string or an integer.', E_USER_WARNING);
  43              return false;
  44          }
  45  
  46          if (!is_int($offset) && !is_bool($offset) && !is_null($offset)) {
  47              user_error('stripos() expects parameter 3 to be long, ' .
  48                  gettype($offset) . ' given', E_USER_WARNING);
  49              return false;
  50          }
  51  
  52          // Manipulate the string if there is an offset

  53          $fix = 0;
  54          if (!is_null($offset)) {
  55              if ($offset > 0) {
  56                  $haystack = substr($haystack, $offset, strlen($haystack) - $offset);
  57                  $fix = $offset;
  58              }
  59          }
  60  
  61          $segments = explode(strtolower($needle), strtolower($haystack), 2);
  62  
  63          // Check there was a match

  64          if (count($segments) === 1) {
  65              return false;
  66          }
  67  
  68          $position = strlen($segments[0]) + $fix;
  69          return $position;
  70      }
  71  }
  72  
  73  ?>