system/helpers/xml_helper.php

   1 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
   2 /**
   3  * CodeIgniter
   4  *
   5  * An open source application development framework for PHP 5.1.6 or newer
   6  *
   7  * @package             CodeIgniter
   8  * @author              ExpressionEngine Dev Team
   9  * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
  10  * @license             http://codeigniter.com/user_guide/license.html
  11  * @link                http://codeigniter.com
  12  * @since               Version 1.0
  13  * @filesource
  14  */
  15
  16 // ------------------------------------------------------------------------
  17
  18 /**
  19  * CodeIgniter XML Helpers
  20  *
  21  * @package             CodeIgniter
  22  * @subpackage  Helpers
  23  * @category    Helpers
  24  * @author              ExpressionEngine Dev Team
  25  * @link                http://codeigniter.com/user_guide/helpers/xml_helper.html
  26  */
  27
  28 // ------------------------------------------------------------------------
  29
  30 /**
  31  * Convert Reserved XML characters to Entities
  32  *
  33  * @access      public
  34  * @param       string
  35  * @return      string
  36  */
  37 if ( ! function_exists('xml_convert'))
  38 {
  39         function xml_convert($str, $protect_all = FALSE)
  40         {
  41                 $temp = '__TEMP_AMPERSANDS__';
  42
  43                 // Replace entities to temporary markers so that
  44                 // ampersands won't get messed up
  45                 $str = preg_replace("/&#(\d+);/", "$temp\\1;", $str);
  46
  47                 if ($protect_all === TRUE)
  48                 {
  49                         $str = preg_replace("/&(\w+);/",  "$temp\\1;", $str);
  50                 }
  51
  52                 $str = str_replace(array("&","<",">","\"", "'", "-"),
  53                                                         array("&amp;", "&lt;", "&gt;", "&quot;", "&apos;", "&#45;"),
  54                                                         $str);
  55
  56                 // Decode the temp markers back to entities
  57                 $str = preg_replace("/$temp(\d+);/","&#\\1;",$str);
  58
  59                 if ($protect_all === TRUE)
  60                 {
  61                         $str = preg_replace("/$temp(\w+);/","&\\1;", $str);
  62                 }
  63
  64                 return $str;
  65         }
  66 }
  67
  68 // ------------------------------------------------------------------------
  69
  70 /* End of file xml_helper.php */
  71 /* Location: ./system/helpers/xml_helper.php */