3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match('|^\w+-(\w+)-\w*-\w+$|', '1234-123--132', $m);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0