3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h' ); $array = array_reverse($array); $chunk = array_chunk($array, 3); $array = array_map('array_reverse', $chunk); print_r(array_reverse($array));
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Array ( [0] => Array ( [0] => a [1] => b ) [1] => Array ( [0] => c [1] => d [2] => e ) [2] => Array ( [0] => f [1] => g [2] => h ) )
preferences:
153.03 ms | 409 KiB | 5 Q