3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach( range( 0, 5) as $c) { $mod = $c % 5; $input = ($mod < 3) ? $c - $mod : $c + (5 - $mod); echo $c . ' ' . $input . "\n"; }

preferences:
53.94 ms | 402 KiB | 5 Q