56 lines
1.6 KiB
PHP
56 lines
1.6 KiB
PHP
|
<?php
|
||
|
|
/**
|
||
|
|
* Smarty plugin
|
||
|
|
*
|
||
|
|
* @package Smarty
|
||
|
|
* @subpackage PluginsModifier
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Smarty regex_replace modifier plugin
|
||
|
|
* Type: modifier
|
||
|
|
* Name: regex_replace
|
||
|
|
* Purpose: regular expression search/replace
|
||
|
|
*
|
||
|
|
* @link https://www.smarty.net/manual/en/language.modifier.regex.replace.php
|
||
|
|
* regex_replace (Smarty online manual)
|
||
|
|
* @author Monte Ohrt <monte at ohrt dot com>
|
||
|
|
*
|
||
|
|
* @param string $string input string
|
||
|
|
* @param string|array $search regular expression(s) to search for
|
||
|
|
* @param string|array $replace string(s) that should be replaced
|
||
|
|
* @param int $limit the maximum number of replacements
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
function smarty_modifier_regex_replace($string, $search, $replace, $limit = -1)
|
||
|
|
{
|
||
|
|
if (is_array($search)) {
|
||
|
|
foreach ($search as $idx => $s) {
|
||
|
|
$search[ $idx ] = _smarty_regex_replace_check($s);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$search = _smarty_regex_replace_check($search);
|
||
|
|
}
|
||
|
|
return preg_replace($search, $replace, $string, $limit);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param string $search string(s) that should be replaced
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
* @ignore
|
||
|
|
*/
|
||
|
|
function _smarty_regex_replace_check($search)
|
||
|
|
{
|
||
|
|
// null-byte injection detection
|
||
|
|
// anything behind the first null-byte is ignored
|
||
|
|
if (($pos = strpos($search, "\0")) !== false) {
|
||
|
|
$search = substr($search, 0, $pos);
|
||
|
|
}
|
||
|
|
// remove eval-modifier from $search
|
||
|
|
if (preg_match('!([a-zA-Z\s]+)$!s', $search, $match) && (strpos($match[ 1 ], 'e') !== false)) {
|
||
|
|
$search = substr($search, 0, -strlen($match[ 1 ])) . preg_replace('![e\s]+!', '', $match[ 1 ]);
|
||
|
|
}
|
||
|
|
return $search;
|
||
|
|
}
|