3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('a' => 2, 'b' => 1, 'c' => 4); krsort($array); print_r($array); $array = array('q' => 2, 'b' => 1, 'z' => 4); $array = array_reverse($array); print_r($array); $array = array('a' => 2, 'b' => 1, 'c' => 4); $first = array_shift($array); array_unshift(array_pop($array)); array_push($array,$first); print_r($array);
preferences:
37.43 ms | 402 KiB | 5 Q