3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(2,12,51,0,123,0,31,0,31); array_filter($arr); print_r($arr);
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => 2 [1] => 12 [2] => 51 [3] => 0 [4] => 123 [5] => 0 [6] => 31 [7] => 0 [8] => 31 )
preferences:
216.49 ms | 404 KiB | 254 Q