3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(count(null));
Output for 7.2.0 - 7.2.1
Warning: count(): Parameter must be an array or an object that implements Countable in /in/fV7pp on line 2 int(0)
Output for 4.3.0 - 5.6.30, hhvm-3.10.1 - 3.22.0, 7.0.0 - 7.1.13
int(0)