session reset

davieboy

i am trying to reset a session after someone has gone to the checkout page.
also trying to delete the stuff from the old session

code:

<?php

$old_sessionid = session_id();
session_regenerate_id();
// end session resetting
// Begin Session Unregistering
$products= $_GET['products'];   

$product = $_GET['proid']; 
unset($_SESSION['products'][$key]);  

// End Session Unregistering
?>

But it does not work, the stuff in the session is not deleted
any ideas
Ta

bad76

Hi,
I think unset() don't work for session variable. Try to use session_destroy(), instead.

I'm used to do this to logout:

session_start();
session_destroy();

see you

davieboy

that destroys the loged in users though

bad76

Ah! My bad.
I'm sorry. You want destroy only some values... then... it's the same. unset() don't work with session variable.

But you can try with session_unregister() function.

bye bye

LordShryku

unset will work if you only want to remove some of the session variables. I'm pretty sure session_unregister is depreciated, or will be soon. If you wanted to destroy all of the session variables without destroying the session, you're supposed to just reset the session array now.

$_SESSION = array();

bad76

Ooops, you are rigth!
I've just read "Do not use UNSET()..."
But I remember... this thread:
http://www.phpbuilder.com/board/showthread.php?s=&threadid=10239429&highlight=session

Now I'm a bit confused... :p
see you

LordShryku

Yes, but it could be a code problem. I use unset without issue, so I can really go on experience here. Might want to add some debugging to the unset.

echo "Key = ".$key."<br />";
echo "P-Key = ".$_SESSION['products'][$key]."<br />";
if(isset($_SESSION['products'][$key])) {
   unset($_SESSION['products'][$key]);
   echo "New P-Key = ".$_SESSION['products'][$key];
}
else {
   die("P-Key does not exist");
}

Weedpacket

Originally posted by LordShryku
Yes, but it could be a code problem. I use unset without issue, so I can really go on experience here. Might want to add some debugging to the unset.

There was a bug in earlier versions of PHP that meant $SESSION[] variables could not be unset() properly - I forget when it was fixed, but I'm pretty sure it was by 4.3. (Ah, here we go, bug 18071.) Workaround was to use $SESSION['foo']=null instead.

bad76

I knew! Thanks Weedpacket.

A time ago I've trahsed my head a lot on this problem, and at last I've memorized "unset() with session just don't work...".

But for space reasons, do not memorize "...in this version." 😃