3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $rows = false; $x = count($rows); echo $x; ?>
Output for 7.2.0 - 7.3.0rc4
Warning: count(): Parameter must be an array or an object that implements Countable in /in/A9C9H on line 3 1
Output for 4.3.0 - 7.1.20
1