Removing all session variables except two?

[denhamd2]

Please could someone help me,

I have a session set up where when someone orders something it get added as a session variable. I'm trying to set up a clear cart page.

Is there any way of clearing all session variables except for the session variables "MM_Username" and "MM_UserGroup"?

[devinemke]

foreach ($_SESSION as $key => $value)
{
	if ($key != 'MM_Username' && $key != 'MM_UserGroup') {unset($_SESSION[$key]);}
}

i might suggest you keep the entire cart in a subarray of the $SESSION array, that way you can simply do:

unset($_SESSION['cart']);

[denhamd2]

im using your first code which is great thanks. the only problem is in internet explorer it seems to work fine but in opera it doesnt seem to? any ideas?