3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $b = (function_exists('define')); if ($b) { define('A', 100); $f = 'define'; $f('B', $f); class A { } }
based on oDCus
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Output for hhvm-3.10.0

Process exited with code 153.