3v4l.org

run code in 300+ PHP versions simultaneously
<?php function starttime() { return microtime(true); } function duration($starttime) { $endtime = microtime(true); return number_format($endtime - $starttime, 10); } $starttime = starttime(); $arr = array(); echo duration($starttime) . PHP_EOL; $starttime2 = starttime(); $arr2 = []; echo duration($starttime2) . PHP_EOL;

preferences:
34.46 ms | 402 KiB | 5 Q