My Sessions are Dying!!!!

[soulrazer]

I am building a website for a client. I am using session variables to pass values from page to page. Everything works perfectly on my machine. But the session variable carries no value between pages on the clients machine. The client is on a LAN behind a Proxy Server. I am now using cookies and they work everywhere.

What was the problem with the session variables? How can i use session variables in the future and not run into these problems?

[Anon]

As far as I got the idea of session right, they work in the following way:
When you create a session, the data (session vars) is stored in your filesystem (or db, depends on what you pointed it ... filesystem is the default) and a unique session_id (PHPSESSID per default ...) is created. You can't just believe in session and the values get passed via a miracle to the next HTTP Request your (let's call him) visitor sends to your webserver ... you need to tell your webserver what session you want to access, for that you need the session_id, normaly the session_id is stored in a cookie on the clientside, but if the client rejects to accept cookies, you need to transfer it via URL ... (or you have PHP compiled with enable-trans-id ...).
Does that make sense and answers your question ?!? If there is still something left you want to know, just ask !!
cya Rob

[soulrazer]

So another words.
I start a session check the id set my variables. Move to the next page then tell it to find the session of the previously retreived id.

[Anon]

yepp, thats the concept... in real-life its a bit easier, because you only need to do a session_start() and PHP uses the Session ID you gave it (either via cookie or URL)

cya Rob

[soulrazer]

Thank You i appreciate the info.