3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = pow(10, 8); while($a) --$a;
based on oTCIK
Output for 5.6.0 - 5.6.1, 5.6.3 - 5.6.30, 7.0.0 - 7.2.0
Output for 5.6.2, hhvm-3.15.4

Process exited with code 137.