3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach(range(1,100)as $i){ $a=!($i%3); $b=!($i%5); echo ($a||$b?($a?'Fizz':'').($b?'Buzz':''):$i)."\n"; }

preferences:
42.78 ms | 402 KiB | 5 Q