Determining HTTP Method

[Anon]

Is it possible to determine what protocol is being loaded, http or https via php without looking at the $HTTP_REFERER variable?

[Anon]

Look at the output of <?php phpinfo() ?> and you will find a lot of variables which may be used for various purposes.

Never trust the HTTP_REFERER variable; it's set by the user's browser.

To find out if SSL is active, I use the "HTTPS" server environment variable:

if (getenv('HTTPS')=='on'))
print '<p>SSL is active</p>';
else
print '<p>SSL is <em> not active</p>';

[Anon]

You can also look at the port via $SERVER_PORT. It's 443 by default, but if it's different on your server surely you can find out what it is.