3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php for (;;) for (;;) if (true) break 1; echo "yay";
based on CmKrJ
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0

Process exited with code 137.