Online PHP editor | refs for fdHlL

<?php function starttime() { return microtime(true); } function duration($starttime) { $endtime = microtime(true); return number_format($endtime - $starttime, 10); } $starttime = starttime(); $arr = array(1,2,3,4,5,6,7,8,9); echo duration($starttime) . PHP_EOL; $starttime2 = starttime(); $arr2 = [1,2,3,4,5,6,7,8,9]; echo duration($starttime2) . PHP_EOL;