[RESOLVED] Setting Superglobal Session in Function Not Working

sandthipe

I've got a function, and one of its duties is to echo a variable, '$cost', which it performs wonderfully. However, this function skimps on its other duty which is to set that '$cost' variable into a $_SESSION['cost'] variable. The function works great, but on the following pages the session does not get set to the right value (or any value at all). Here is my code:

$_SESSION['totalCost'] = $totalCost;

session_start() is set on both pages and other $_SESSION array variables are being read just fine, but none of those is set inside a function.

Any thoughts? php.ini setting, perhaps?

-chris

suntra

Without some code, it is very difficult to see what the problem could be (please use the [php ] and [/php ] tags (without spaces)) !

But when you set a session variable, the other variable must exist (the value) ! Like...
$SESSION['totalCost'] = $totalCost;
... $totalCost must already exist ! $SESSION['totalCost'] will exist if it was set before, but $totalCost won't exist unless you set it in every page since session variables don't automatically extract themselves !

You might want to put error_reporting(E_ALL); at the beginning of your scripts just to see errors that could show up 😉

bradgrafelman

Also try echo'ing [man]session_id/man on both pages - are the id's the same? If not, it's not propogating the SID correctly and you're actually starting two different sessions from one page to the next.

sandthipe

thanks for the help. suntra, your advice got me looking more closely at my script and I discovered that I was overwriting the value of $totalCost further down the script. Thanks again!