6 * @subpackage PluginsModifier
10 * Smarty regex_replace modifier plugin
12 * Name: regex_replace<br>
13 * Purpose: regular expression search/replace
15 * @link http://smarty.php.net/manual/en/language.modifier.regex.replace.php
16 * regex_replace (Smarty online manual)
17 * @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 $replace string(s) that should be replaced
25 function smarty_modifier_regex_replace($string, $search, $replace)
27 if (is_array($search)) {
28 foreach ($search as $idx => $s) {
29 $search[$idx] = _smarty_regex_replace_check($s);
32 $search = _smarty_regex_replace_check($search);
35 return preg_replace($search, $replace, $string);
39 * @param string $search string(s) that should be replaced
44 function _smarty_regex_replace_check($search)
46 // null-byte injection detection
47 // anything behind the first null-byte is ignored
48 if (($pos = strpos($search, "\0")) !== false) {
49 $search = substr($search, 0, $pos);
51 // remove eval-modifier from $search
52 if (preg_match('!([a-zA-Z\s]+)$!s', $search, $match) && (strpos($match[1], 'e') !== false)) {
53 $search = substr($search, 0, - strlen($match[1])) . preg_replace('![e\s]+!', '', $match[1]);