3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f($n) { echo $n . date("S", mktime(1,1,1,1,($n%100>10&&$n%100<20?$n:$n%10==0?10:$n%10))); echo "\n"; } for($i=0;$i<300;$i++){ f($i); }

preferences:
44.67 ms | 402 KiB | 5 Q