Every tim new Session ID is generated

annal

Hello Everyone,

I am having a strange problem. I have apache version 2.0.49 and PHP version 5.01. my windows XP home edition.I have used a session and everytime i refresh a browser a new session_id is generated. I have checked every configuration in php.ini file and it seems to be fine. When I use the same configuration with same version apache and php and same code on other machine, it seems to be working fine. what could possibly the problem??????? Can anyone help.

my code looks like this

<?
if ($SESSION['count']){
$SESSION['count']=$SESSION['count']+1;
}
else{
session_unset();
session_start();
$SESSION['count']=1;

}
echo $_SESSION['count'];

?>
Rgds
Annal

Norman_Graham

Hi Annal

Em ... forgive my stupidity, but if you refresh the browser and there's no session_start() at the top of the script, then of course the session is gone, right? What your script is doing is unsetting the session and then doing session_start() again every time. Your script implements the else{} clause every time you hit refresh.

That's the way it seems to me anyway.

Norm

annal

Hi Norm,
Thanks for the reply. i don't think there is a problem in the script, coz same script is running in the other comp.

In this script what it does is, it first checks if any session is registered with "if ($_SESSION['count']){"

now first time when user opens the page, this condition is false and it goes to else step. It unsets the session if there are any and start session with session_start(). Now when the page is refresh then session is already started and "if ($_SESSION['count']){" is true, so it increments the count. This script is working fine on other comp, but don;t know why my comp is giving problem

Thanks
Annal

Weedpacket

Originally posted by annal

In this script what it does is, it first checks if any session is registered with "if ($SESSION['count']){"

But that won't tell you if the session is registered or not - that will just tell if $SESSION['count'] has a nonzero value (assuming it even exists).

For one thing, you should be using [man]isset[/man] to tell if the variable is there. And for another, unless you start the session first (and unless you're giving $_SESSION['count'] a value some other way) the answer you'll get will always be "no".

now first time when user opens the page, this condition is false and it goes to else step. It unsets the session if there are any and start session with session_start().

But why unset a session if you've already decided there's no session?

And of course, if you don't use session_start() (which you don't if you find $_SESSION['count'] already nonzero), then there won't be any session started.

Start the session. After that look to see if $_SESSION['count'] isset or not - if it isn't then this is a new session (assuming that looking to see if that particular variable is there is enough to tell).

This script is working fine on other comp

Well, you've already checked every configuration, so I guess you haven't configured it to start sessions automatically (which can be set in php.ini, httpd.conf, .htaccess, or in the script itself (where it would be equivalent to session_start()), so I don't know why your script is running on the other computer.