Online PHP editor | refs for luMgY

<?php class Utils { public static function guid() { return sprintf("%04X%04X-%04X-%04X-%04X-%04X%04X%04X", rand(0, 65535), rand(0, 65535), rand(0, 65535), rand(16384, 20479), rand(32768, 49151), rand(0, 65535), rand(0, 65535), rand(0, 65535)); } } $count = 1000000; $i = 0; $time = microtime(true); while ($i++ < $count) { Utils::guid(); } echo "total: " . (microtime(true) - $time) . "\n"; echo Utils::guid();