3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $regex = '(((?!a).)*)*a\\{'; $test_string = 'AAAAAAAAAAAAAA{AA'; var_dump(preg_match('/'.$regex.'/','WORKED',$test_string));
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
int(0)
Output for hhvm-3.10.0

Process exited with code 153.