3v4l.org

run code in 300+ PHP versions simultaneously
<?php $n = array('E1', 'E2', 'E4','E5','E0','E9','E8'); natsort($n); print_r($n); reset($n); print_r($n); usort ($n , function($a,$b){ return strnatcmp($a,$b); }); print_r($n);

preferences:
38.94 ms | 402 KiB | 5 Q