Fetch/Show gmail information with authentication

I want to fetch gmail information in my website as well as authentication.
I am new in gmail authentication. But I tried to retrieve email list from GMail account using PHP like
$server = '{imap.gmail.com:993/ssl}';
$connection = imap_open($server, '[email protected]', 'password');

After giving my username and password, it shows(as output) a message like
Resource id #88
in my browser.

If anybody know this how to do this, pls help me by replying it.

My email address are "[email protected]" or "[email protected]"
Thank you