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File: libs/smarty/plugins/modifier.regex_replace.php

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File: libs/smarty/plugins/modifier.regex_replace.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: MVC 4 Dummies
Web development PHP MVC framework
Author: By
Last change:
Date: 9 years ago
Size: 1,575 bytes
 

Contents

Class file image Download
<?php
/**
 * Smarty plugin
 *
 * @package Smarty
 * @subpackage PluginsModifier
 */

/**
 * Smarty regex_replace modifier plugin
 * Type: modifier<br>
 * Name: regex_replace<br>
 * Purpose: regular expression search/replace
 *
 * @link http://smarty.php.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 $replace string(s) that should be replaced
 *
 * @return string
 */
function smarty_modifier_regex_replace($string, $search, $replace)
{
    if (
is_array($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);
}

/**
 * @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;
}