library/smarty/libs/plugins/modifier.regex_replace.php
author Markus Bröker <broeker.markus@googlemail.com>
Fri, 13 Nov 2015 22:13:11 +0100
changeset 17 e7d8b7d8852a
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permissions -rw-r--r--
Datenbank ist jetzt frei konfigurierbar
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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<?php
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/**
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 * Smarty plugin
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 *
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 * @package    Smarty
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 * @subpackage PluginsModifier
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 */
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/**
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 * Smarty regex_replace modifier plugin
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 * Type:     modifier<br>
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 * Name:     regex_replace<br>
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 * Purpose:  regular expression search/replace
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 *
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 * @link    http://smarty.php.net/manual/en/language.modifier.regex.replace.php
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 *          regex_replace (Smarty online manual)
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 * @author  Monte Ohrt <monte at ohrt dot com>
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 *
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 * @param string $string input string
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 * @param string|array $search regular expression(s) to search for
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 * @param string|array $replace string(s) that should be replaced
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 *
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 * @return string
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 */
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function smarty_modifier_regex_replace($string, $search, $replace) {
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    if (is_array($search)) {
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        foreach ($search as $idx => $s) {
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            $search[$idx] = _smarty_regex_replace_check($s);
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        }
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    } else {
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        $search = _smarty_regex_replace_check($search);
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    }
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    return preg_replace($search, $replace, $string);
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}
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/**
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 * @param  string $search string(s) that should be replaced
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 *
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 * @return string
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 * @ignore
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 */
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function _smarty_regex_replace_check($search) {
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    // null-byte injection detection
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    // anything behind the first null-byte is ignored
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    if (($pos = strpos($search, "\0")) !== false) {
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        $search = substr($search, 0, $pos);
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    }
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    // remove eval-modifier from $search
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    if (preg_match('!([a-zA-Z\s]+)$!s', $search, $match) && (strpos($match[1], 'e') !== false)) {
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        $search = substr($search, 0, -strlen($match[1])) . preg_replace('![e\s]+!', '', $match[1]);
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    }
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    return $search;
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}