<?php
/**
* CodeIgniter
*
* An open source application development framework for PHP
*
* This content is released under the MIT License (MIT)
*
* Copyright (c) 2014 - 2018, British Columbia Institute of Technology
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @package CodeIgniter
* @author EllisLab Dev Team
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
* @copyright Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/)
* @license http://opensource.org/licenses/MIT MIT License
* @link https://codeigniter.com
* @since Version 1.0.0
* @filesource
*/
defined('BASEPATH') OR exit('No direct script access allowed');
/**
* CodeIgniter XML Helpers
*
* @package CodeIgniter
* @subpackage Helpers
* @category Helpers
* @author EllisLab Dev Team
* @link https://codeigniter.com/user_guide/helpers/xml_helper.html
*/
// ------------------------------------------------------------------------
if ( ! function_exists('xml_convert'))
{
/**
* Convert Reserved XML characters to Entities
*
* @param string
* @param bool
* @return string
*/
function xml_convert($str, $protect_all = FALSE)
{
$temp = '__TEMP_AMPERSANDS__';
// Replace entities to temporary markers so that
// ampersands won't get messed up
$str = preg_replace('/&#(\d+);/', $temp.'\\1;', $str);
if ($protect_all === TRUE)
{
$str = preg_replace('/&(\w+);/', $temp.'\\1;', $str);
}
$str = str_replace(
array('&', '<', '>', '"', "'", '-'),
array('&', '<', '>', '"', ''', '-'),
$str
);
// Decode the temp markers back to entities
$str = preg_replace('/'.$temp.'(\d+);/', '&#\\1;', $str);
if ($protect_all === TRUE)
{
return preg_replace('/'.$temp.'(\w+);/', '&\\1;', $str);
}
return $str;
}
}
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