3v4l.org

run code in 300+ PHP versions simultaneously
<?php $time = microtime(true); for ($i = 0; $i < 10000; $i++) { $time = $_SERVER['REQUEST_TIME']; } echo 'request time: ' . (microtime(true) - $time) . "\n"; $time = microtime(true); for ($i = 0; $i < 10000; $i++) { $time = time(); } echo 'time(): ' . (microtime(true) - $time);

preferences:
29.59 ms | 402 KiB | 5 Q