3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $sms = 'bb [url=http://youtube.com] kghkj [url=http://foo.com]'; preg_match_all('|\[url=(.*)\|id=(.*)\]|U',$sms, $arr); var_dump($arr);
based on 4st3X
Output for 4.3.0 - 7.2.0
array(3) { [0]=> array(0) { } [1]=> array(0) { } [2]=> array(0) { } }