3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = (1 << 0); $b = (1 << $a); $c = (1 << $b); echo ($c || $b) << 2 * $a | $a;
based on ZstUa
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
5