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1 <?php
2 /**
3  * Smarty shared plugin
4  *
5  * @package    Smarty
6  * @subpackage PluginsShared
7  */
8
9 /**
10  * escape_special_chars common function
11  * Function: smarty_function_escape_special_chars<br>
12  * Purpose:  used by other smarty functions to escape
13  *           special chars except for already escaped ones
14  *
15  * @author   Monte Ohrt <monte at ohrt dot com>
16  *
17  * @param  string $string text that should by escaped
18  *
19  * @return string
20  */
21 function smarty_function_escape_special_chars($string)
22 {
23     if (!is_array($string)) {
24         if (version_compare(PHP_VERSION, '5.2.3', '>=')) {
25             $string = htmlspecialchars($string, ENT_COMPAT, Smarty::$_CHARSET, false);
26         } else {
27             $string = preg_replace('!&(#?\w+);!', '%%%SMARTY_START%%%\\1%%%SMARTY_END%%%', $string);
28             $string = htmlspecialchars($string);
29             $string = str_replace(array('%%%SMARTY_START%%%', '%%%SMARTY_END%%%'), array('&', ';'), $string);
30         }
31     }
32
33     return $string;
34 }