3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php ini_set('pcre.backtrack_limit', 100000000); ini_set('pcre.recursion_limit', 100000000); preg_match('~(a)*~', str_repeat('a', 11000), $match);
Output for 7.0.0 - 7.1.7
Output for 4.3.0 - 5.6.28

Process exited with code 139.