1 <?php
2 /**
3 * Smarty plugin
4 *
5 * @package Smarty
6 * @subpackage PluginsModifier
7 */
9 /**
10 * Smarty regex_replace modifier plugin
11 *
12 * Type: modifier<br>
13 * Name: regex_replace<br>
14 * Purpose: regular expression search/replace
15 *
16 * @link http://smarty.php.net/manual/en/language.modifier.regex.replace.php
17 * regex_replace (Smarty online manual)
18 * @author Monte Ohrt <monte at ohrt dot com>
19 * @param string $string input string
20 * @param string|array $search regular expression(s) to search for
21 * @param string|array $replace string(s) that should be replaced
22 * @return string
23 */
24 function smarty_modifier_regex_replace($string, $search, $replace)
25 {
26 if(is_array($search)) {
27 foreach($search as $idx => $s) {
28 $search[$idx] = _smarty_regex_replace_check($s);
29 }
30 } else {
31 $search = _smarty_regex_replace_check($search);
32 }
33 return preg_replace($search, $replace, $string);
34 }
36 /**
37 * @param string $search string(s) that should be replaced
38 * @return string
39 * @ignore
40 */
41 function _smarty_regex_replace_check($search)
42 {
43 // null-byte injection detection
44 // anything behind the first null-byte is ignored
45 if (($pos = strpos($search,"\0")) !== false) {
46 $search = substr($search,0,$pos);
47 }
48 // remove eval-modifier from $search
49 if (preg_match('!([a-zA-Z\s]+)$!s', $search, $match) && (strpos($match[1], 'e') !== false)) {
50 $search = substr($search, 0, -strlen($match[1])) . preg_replace('![e\s]+!', '', $match[1]);
51 }
52 return $search;
53 }
55 ?>