3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match('~(a)*~', str_repeat('a', 5431));
Output for 4.3.0 - 5.3.9, 5.3.19 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Output for 5.3.10 - 5.3.18

Process exited with code 139.