3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 'ff'; echo count($a);
Output for 7.2.0
Warning: count(): Parameter must be an array or an object that implements Countable in /in/196F8 on line 5 1
Output for 5.3.20 - 7.1.10
1