3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match('/a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?aaaaaaaaaaaaaaaaaaaaaaaaaaaaa/', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaa');
Output for 4.3.3 - 5.6.28, 7.0.3 - 7.1.0
Output for 4.3.0 - 4.3.2, 7.0.0 - 7.0.2

Process exited with code 137.