3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $master_array = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15); $n = 5; // This is the number of columns / arrays $pattern_array = array(); $meta_array = array(); for ($i=1; $i <= $n; ++$i) { $pattern_array[] = $i; $meta_array[] = array(); } for ($i=$n; $i > 0; --$i) { $pattern_array[] = $i; } foreach ($master_array as $i => $element) { $meta_array[$pattern_array[$i%count($pattern_array)] - 1][] = $element; } print_r($meta_array);
Output for 4.3.0 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => Array ( [0] => 1 [1] => 10 [2] => 11 ) [1] => Array ( [0] => 2 [1] => 9 [2] => 12 ) [2] => Array ( [0] => 3 [1] => 8 [2] => 13 ) [3] => Array ( [0] => 4 [1] => 7 [2] => 14 ) [4] => Array ( [0] => 5 [1] => 6 [2] => 15 ) )