isset() question

[netfrugal]

I want to check if there are 2 different SESSION variables that exist.

But i am clearly not getting the syntax right with this.

<?
if(!isset($_SESSION['member_id'] || $_SESSION['admin_id'])){  header('Location: somewhere'); }
?>

I'm basically only allowing people with either the member_id or admin_id to view certain pages. If neither variable exist, then I send them elsewhere, like to the login page.

I've tried it differently, but still no luck. Any help?

thanks!!

[laserlight]

Like this:

<?php
if (!isset($_SESSION['member_id']) && !isset($_SESSION['admin_id'])) {
    header('Location: somewhere');
    exit;
}
?>