Detecting existing session

[Stinger51]

I've been trying to detect whether a session is already in use with the following code :

if (! $_SESSION)

if (! $PHPSESSID)

if (! $_SESSION['PHPSESSID']) . . .

// declare session vars as
// $SESSION['doremi'];
// $SESSION['xyz'];

But nothing seems to work here. The script never finds the existing session, and keeps redeclaring these session vars when they already exist. I'm using PHP 4.3 on a Win XP platform, using Apache 1.3.

Thanks in advance to anyone who knows what the problem is here (assuming it's not the dumb programmer :queasy: ).

[gufmn]

use isset()

[rehfeld]

or

if (!session_id()) {
    // no session
}