3v4l.org

run code in 300+ PHP versions simultaneously
<?php $services = array('http', 'ftp', 'ssh', 'telnet', 'imap', 'smtp', 'nicname', 'gopher', 'finger', 'pop3', 'www'); foreach ($services as $service) { $port = getservbyname($service, 'tcp'); echo $service . ": " . $port . "<br />\n"; }

preferences:
34.47 ms | 402 KiB | 5 Q