Online PHP editor | refs for oDIWT

<?php function breakPartitionsLongerThan ($partitions, $length) { $ret = array(); foreach ($partitions as $partition) { $chunks = array_chunk ($partition, $length); if (count($chunks) > 1) for ($i = 0; $i < count ($chunks) - 1; $i++) // for every chunk except the last one, append the first address of the next chunk. $chunks[$i][] = $chunks[$i+1][0]; $ret = array_merge ($ret, $chunks); } return $ret; } var_dump (breakPartitionsLongerThan([[1,2,3,4,5,6,7,8,9,10]], 2));