3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match( '/^archiv32/-/', 'archiv32-gtl.proe.biz', $matches); echo $matches[1];
Output for 5.2.0 - 7.1.0
Warning: preg_match(): Unknown modifier '-' in /in/eJb69 on line 2
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Unknown modifier '-' in /in/eJb69 on line 2 Notice: Undefined offset: 1 in /in/eJb69 on line 3
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '-' in /in/eJb69 on line 2 Notice: Undefined offset: 1 in /in/eJb69 on line 3