3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = range('a', 'g'); $n = 2; $result = array_chunk($array, $n); $result[array_key_last($result)] += array_fill(0, $n, null); var_export($result);
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array ( 0 => array ( 0 => 'a', 1 => 'b', ), 1 => array ( 0 => 'c', 1 => 'd', ), 2 => array ( 0 => 'e', 1 => 'f', ), 3 => array ( 0 => 'g', 1 => NULL, ), )

preferences:
53.52 ms | 1002 KiB | 4 Q