3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print_r(count($blah));
Output for 7.2.0
Notice: Undefined variable: blah in /in/pKt9K on line 3 Warning: count(): Parameter must be an array or an object that implements Countable in /in/pKt9K on line 3 0
Output for 5.0.4 - 7.1.10
Notice: Undefined variable: blah in /in/pKt9K on line 3 0
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: blah in /in/pKt9K on line 3 0