3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class ZunicoreNull { function __construct() { return FALSE; } } $null = new ZunicoreNull; if ($null) { print "is true"; } else { print "is false"; }
Output for 5.0.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
is true
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 4.4.9
is false