3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = microtime(); $b = 1000 >> 2; $c = microtime(); echo $a - $c."\n"; $a = microtime(); $b = 1000 / 4; $c = microtime(); echo $a - $c."\n";

preferences:
32.88 ms | 402 KiB | 5 Q