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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: Alan Morey <alan@caint.com>                                 |

  16  // |          Aidan Lister <aidan@php.net>                                |

  17  // +----------------------------------------------------------------------+

  18  //

  19  // $Id: str_rot13.php,v 1.4 2005/01/26 04:55:13 aidan Exp $

  20  
  21  
  22  /**

  23   * Replace str_rot13()

  24   *

  25   * @category    PHP

  26   * @package     PHP_Compat

  27   * @link        http://php.net/function.str_rot13

  28   * @author      Alan Morey <alan@caint.com>

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

  30   * @version     $Revision: 1.4 $

  31   * @since       PHP 4.0.0

  32   */
  33  if (!function_exists('str_rot13')) {
  34      function str_rot13($str)
  35      {
  36          $from = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
  37          $to   = 'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM';
  38  
  39          return strtr($str, $from, $to);
  40      }
  41  }
  42  
  43  ?>