3v4l.org

run code in 300+ PHP versions simultaneously
<?php $matrix = array(1, 2, 1,1, 2, 1,1, 1, 1); $res = array_chunk($matrix,3); print_r($res);
Output for 7.1.25 - 7.1.28, 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 - 8.2.19, 8.3.0 - 8.3.7
Array ( [0] => Array ( [0] => 1 [1] => 2 [2] => 1 ) [1] => Array ( [0] => 1 [1] => 2 [2] => 1 ) [2] => Array ( [0] => 1 [1] => 1 [2] => 1 ) )
preferences:
108.59 ms | 404 KiB | 167 Q