Online PHP editor | output for gJA7A

<?php function restructureArray1($array, $x) { $size = sizeof($array); if ($size < $x) return array_chunk($array, 1) + array_fill(0, $x, array()); $big_row_length = (int) ($size / $x) + 1; $big_rows_chunk = array_splice($array, 0, $size % $x * $big_row_length); return array_merge(array_chunk($big_rows_chunk, $big_row_length), array_chunk($array, $big_row_length - 1)); } function restructureArray2($array, $x) { $size = sizeof($array); $small_row_length = (int) ($size / $x); $big_row_count = $size % $x; for ($i = 0; $i < $x; ++$i) { $length = $small_row_length + (int) ($i < $big_row_count); $return [] = array_splice($array, 0, $length); } return $return; } $x = 3; $size = 7; $array = range(1, $size); $result1 = restructureArray1($array, $x); $result2 = restructureArray2($array, $x); var_dump(array_map(function($array) { return implode(', ', $array); }, $result2));