Re: HTTP header information

"Philip Thompson" <prthomp@uark.edu> wrote in message news:701321CF-BAE4-11D8-BFD5-000393C795C4@uark.edu... > Hi all. > > I am running a website to where a user needs to login to authenticate > themselves to perform certain tasks. So a user logs in, and I start a > session (in PHP, of course). Well, the catch is, I am doing this all > from one page, 'viewer.php', and I just tack on the specific view/page > that I want them to see, depending on the link selected on that page. > Meaning, they click on the 'submit problem' link and it goes to > 'viewer.php?type=submitproblem'. > > The problem comes whenever I load the view 'submitproblem' and I start > a session with session_start(), which carries over the variable to tell > whether or not the user is logged in. If they have not logged in > whenever they click on 'submitproblem' then it will redirect them to > 'viewer.php?type=login'. So I log in, and then go to 'submitproblem'. > > This is where I get the error: "Warning: session_start(): Cannot send > session cookie - headers already sent". Essentially, I understand why > this is occurring, but is there an easy way to get around it without > creating a new page, such as 'submitproblem.php' instead of > 'viewer.php?type=submitproblem'??? Make sure that NO output is done before session_start() is called. Can you post some of your code? Regards, Torsten Roehr