1: <?php
 2: 
 3: /**
 4:  * Jyxo PHP Library
 5:  *
 6:  * LICENSE
 7:  *
 8:  * This source file is subject to the new BSD license that is bundled
 9:  * with this package in the file license.txt.
10:  * It is also available through the world-wide-web at this URL:
11:  * https://github.com/jyxo/php/blob/master/license.txt
12:  */
13: 
14: namespace Jyxo\Input\Filter;
15: 
16: /**
17:  * Filter for prepending "http://" if missing.
18:  *
19:  * @category Jyxo
20:  * @package Jyxo\Input
21:  * @subpackage Filter
22:  * @copyright Copyright (c) 2005-2011 Jyxo, s.r.o.
23:  * @license https://github.com/jyxo/php/blob/master/license.txt
24:  * @author Jaroslav Hanslík
25:  */
26: class SanitizeUrl extends \Jyxo\Input\Filter\AbstractFilter
27: {
28:     /**
29:      * Filters a value.
30:      *
31:      * @param mixed $in Input value
32:      * @return mixed
33:      */
34:     protected function filterValue($in)
35:     {
36:         if (!preg_match('~^(?:http|ftp)s?://~i', $in)) {
37:             $in = 'http://' .  $in;
38:         }
39: 
40:         return $in;
41:     }
42: }
43: