In PHP, is there a reliable and good way of getting these things:

Protocol: i.e. http or https Servername: e.g. localhost Portnumber: e.g. 8080

I can get the server name using $_SERVER['SERVER_NAME'].

I can kind of get the protocol but I don't think it's perfect:

    if(strtolower(substr($_SERVER["SERVER_PROTOCOL"],0,5))=='https') {
        return "https";
    }
    else {
        return "http";
    }

I don't know how to get the port number though. The port numbers I am using are not 80.. they are 8080 and 8888.

Thank you.