3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = []; $x[] = class_exists('null'); var_export($x);
based on Ygki2
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
array ( 0 => false, )