3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array(3,null); function is_not_null ($var) { return !is_null($var); } $filtered = array_filter($arr, 'is_not_null'); print_r($filtered);
based on CKrYO
Output for 4.3.0 - 7.2.0
Array ( [0] => 3 )