3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php preg_match('~(a)*~', str_repeat('a', 5431));
Output for 4.3.0 - 5.3.9, 5.3.19 - 7.1.10
Output for 5.3.10 - 5.3.18

Process exited with code 139.