3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php namespace Foo; define ('Foo\null', 1); var_dump(null === \null);
based on UhWCl
Output for 7.0.0 - 7.2.0
bool(true)
Output for 5.3.21 - 5.6.28
bool(false)