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run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array(0,0,13); function is_not_null ($var) { return !is_null($var); } $filtered = array_filter($arr, 'is_not_null'); print_r($filtered);
based on cYsAa
Output for 4.3.0 - 7.2.0
Array ( [0] => 0 [1] => 0 [2] => 13 )