3v4l.org

run code in 300+ PHP versions simultaneously
<?php $chunk_size = 3; while(count($sequences) > 0){ $sequences = array('a','b','c','d','e'); $small_chunk = array_slice($sequences, 0, $chunk_size); $sequences = array_slice($sequences, $chunk_size); print_r($small_chunk); print_r($sequences); }

preferences:
33.23 ms | 402 KiB | 5 Q