Using Sessions

[Anon]

Please tell me if this is possible.
In MS ASP pages, you can call a session variable from another persons sessin. For instance:
There are 3 people viewing my website at the exact same time, and they are all logged in with there usernames. I set a session variable for each of there usernames.

Is there a way to get a list of all 3 people that are logged with out using a DB. I can already do it with a DB, but I would like to use sessins to get this info.

Thanks in advance.

[Anon]

You can use PHPLIB. Refer to www.phplib.com for more info.