Session start/register

bjblackmore

Hi,
I'm not sure if my session is starting properly, is there away I can check? I have at the very top of my login page,
session_start();
session_register(sUserID); <-I want to register the UserID)
Then on the next page, I have a select menu based on the sUserID
(SELECT option1, option2 FROM table1 WHERE table1.user_id = $sUserID)

The trouble is, the menu isn't being populated, and when you click on the logout page, which has..
session_destroy();
at the top, I get "Warning: Trying to destroy uninitialized session"
Can anyone help? Why isn't the session being initialised?
Thanks in advance!
Ben

knickerlas

Hi
Not sure on the session_destroy() point, I would think you would get a warning if the session wasn't created properly?
You need to register the $sUserID properly with "" though like this: session_register("sUserID");

Nick

Anon

Hi!
About the session_destroy(). On your logout page you have to first call function session_start(), which will restore your session ID (if there is one) and then you destroy the session that is currently running.
Nowaq

knickerlas

Glad you spotted that, it annoyed me that I couldn't see it!

Nick

bjblackmore

Ah, OK, thanks for that. I only just started using sessions, didn't think you would have to start a session, to end it straight after.
Cheers
Ben

bjblackmore

Yeah it worked, i just added it, and its running fine. I still can't get a drop down menu to work though. I have 2 tables. 1 with user_id, username, password. and 1 with user_id, options. I want users to login, if user1 logs in, it will build a menu based on the options specified for user1.
I have
<?
session_start();
?>
at the very top, and then..
$sUserID = $row["user_id"];
session_register("sUserID");

Maybe I should add something like this to the login function.
$query=mysql_query("SELECT user_id FROM table1 WHERE user_name='$user_name' AND password='$password'",$db) or die ("Cant run query");
while ($row=mysql_fetch_array($query))
{
if ($row["user_name"] == $user_name && $row["password"] == $password)
{
$sUserID = $row["user_id"];
session_register("sUserID");
}
}
If anyone else has any suggestion, please help.
Cheers
Ben