3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php namespace Foo; define('Foo\\null', \true); define('Foo\\true', \false); define('Foo\\false', \true); if (null) { echo "TRUE"; } else { echo "FALSE!!!"; }
based on 1M78n
Output for 7.0.0 - 7.2.0
FALSE!!!
Output for 5.3.17 - 5.6.28
TRUE