3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = false; echo count($a);
Output for 7.2.0 - 7.3.0rc4
Warning: count(): Parameter must be an array or an object that implements Countable in /in/u70Jf on line 3 1
Output for 4.3.0 - 7.1.20
1