3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('a' => 2, 'b' => 1, 'c' => 4); $temp = $array['c']; $array['c'] = $array['a']; $array['a'] = temp; print_r($array);

preferences:
40.15 ms | 402 KiB | 5 Q