When you use a header redirect, you start with a new page. Everything you did until then is gone. When you call session_start on the new page, it resumes the same session, not creates a new one.
Thank you, Micah Gersten onShore Networks Internal Developer http://www.onshore.com tedd wrote: > Hi gang: > > I found the problem I was having with sessions and want to share it > with you -- it surprised me. > > To refresh -- I was having a problem with destroying a session. I went > through all the steps shown in the manual and dozens of recommended > ways of doing it I found on the net. > > However, I found that while I was actually destroying the session I > wanted, another session was being created in a very unexpected way. > > Now, the manual says: > > "session_start() creates a session or resumes the current one based on > the current session id that's being passed via a request, such as GET, > POST, or a cookie." > > From that one assumes that if you place a session_start at the > beginning of each page, then the first time it's encountered, a > session will be created and with every encounter thereafter the > established session will be used. > > That's the way it works PROVIDED that you do not use the following in > your code: > > header('Location: http://www.yourdomain.com/whatever/index.php'); > > If you use that statement, then a new session will be created AND you > will find that you'll have two sessions working concurrently. That > creates several problems -- one of them being while you may destroy > the first session, the second will be still remain. > > Now, how many people knew this? > > Am I the only one who didn't? > > Cheers, > > tedd -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
