1: <?php
 2: /*****************************************************************************************
 3:  * X2Engine Open Source Edition is a customer relationship management program developed by
 4:  * X2Engine, Inc. Copyright (C) 2011-2016 X2Engine Inc.
 5:  * 
 6:  * This program is free software; you can redistribute it and/or modify it under
 7:  * the terms of the GNU Affero General Public License version 3 as published by the
 8:  * Free Software Foundation with the addition of the following permission added
 9:  * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
10:  * IN WHICH THE COPYRIGHT IS OWNED BY X2ENGINE, X2ENGINE DISCLAIMS THE WARRANTY
11:  * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
12:  * 
13:  * This program is distributed in the hope that it will be useful, but WITHOUT
14:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15:  * FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
16:  * details.
17:  * 
18:  * You should have received a copy of the GNU Affero General Public License along with
19:  * this program; if not, see http://www.gnu.org/licenses or write to the Free
20:  * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21:  * 02110-1301 USA.
22:  * 
23:  * You can contact X2Engine, Inc. P.O. Box 66752, Scotts Valley,
24:  * California 95067, USA. or at email address [email protected].
25:  * 
26:  * The interactive user interfaces in modified source and object code versions
27:  * of this program must display Appropriate Legal Notices, as required under
28:  * Section 5 of the GNU Affero General Public License version 3.
29:  * 
30:  * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
31:  * these Appropriate Legal Notices must retain the display of the "Powered by
32:  * X2Engine" logo. If the display of the logo is not reasonably feasible for
33:  * technical reasons, the Appropriate Legal Notices must display the words
34:  * "Powered by X2Engine".
35:  *****************************************************************************************/
36: 
37: class UrlUtil {
38: 
39:     /**
40:      * Merge query string parameters into an existing url.
41:      */
42:     public static function mergeParams ($url, array $params) {
43:         $components = parse_url ($url);
44:         $query = array ();
45:         $oldQuery = '';
46:         if (isset ($components['query'])) {
47:             $oldQuery = $components['query'];
48:             parse_str ($components['query'], $query);
49:         }
50:         $query = array_merge ($query, $params);
51:         $newQuery = '?'.http_build_query ($query);
52:         if ($newQuery !== '?')
53:             return preg_replace ('/\??'.preg_quote ($oldQuery).'$/', $newQuery, $url);
54:         else
55:             return $url;
56:     }
57: }
58: 
59: ?>
60: