3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $master_array = array(1, 2, 3, 4, 5, 6); $n = 2; // 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) { $pattern_index = $i % count($pattern_array); $meta_index = $pattern_array[$pattern_index] - 1; $meta_array[$meta_index][] = $element; } print_r($meta_array);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => Array ( [0] => 1 [1] => 4 [2] => 5 ) [1] => Array ( [0] => 2 [1] => 3 [2] => 6 ) )