session id problem

Everytime I execute a session_start() command, a new session ID is generated. is this normal with PHP on Windows?

i need to have the same session ID to be able to track my variables right? - when I go from one page to another (say from a login page to a login confirmation page) I get different session IDs.

the following is my setup:
- Windows XP
- PHP 4.3.1 for Windows
- MySQL 3.23.55-nt

Append your links with the session id

Or, you can use the constant SID

Or, if you are really really lazy - have PHP do it for you


Now, lets get to your problem. Your php ini file is set to have session.use_trans_sid = 0, or false - which means by default it will not attempt to re-write your urls. On the same note, session.use_cookies is set to 1 or true, meaning to track the user by means of setting a cookie. If php can't set a cookie on the clients machine, you need to carry the session info in the link(s) for php to know that there is an active session going on.

Personally - I set 'session.use_trans_sid' to 0 or false in all of my applications as I prefer to write my own links. But, you can get a quick fix by enabling it as above.

One other thing to note - make sure you have the ini_set() at the top of your script before starting the session...

Joe,

If I attach the session id to the links, does this mean I don't have to use the session_start() command if I go to another page?

from what i understood in the PHP manual, i have to place a session_start() command in every page that needs to track the sessions. is my understanding correct? or do i just need to execute this command at the very start of the session?

thanks,
hec

Yes - you must still and always use session_start() at the top of your pages....

ok - my other problem is in accessing the session variables i set in the previous pages.

correct me if i am wrong:
if I need to set a session variable I use session_register() and then set the value of the variable like this:


and then in the following page I can access the variable by using $_SESSION['myvar'].

my problem is I seem to be able to set the values for the variable but I could not access them anymore in the next pages - I get a "PHP Notice: Undefined index:myvar" error.

Ok - this is why it is essential to post your code on when looking for help.

session_register(), session_is_register(), session_unregister()

Get rid of those functions - never refer to them, act like they are invisible as they will actually be invisible by ver 5 anyways. But until then, just ignore those functions.

Now, to register a session variable, you would register it as so ->

To unregister the session variable ->

To check to see if it is registered ->


Remeber, do all of this after you have started the session....