3v4l.org

run code in 300+ PHP versions simultaneously
<?php $host="74.125.0.0" ; $port=80; $timeout=30; $sk=fsockopen($host,$port,$errnum,$errstr,$timeout) ; if (!is_resource($sk)) { exit("connection fail: ".$errnum." ".$errstr) ; } else { echo "Connected"; } ?>

preferences:
36.68 ms | 402 KiB | 5 Q