Sessions across multiple scripts.

I wish to be able to pass PHP values between multiple scripts. In each script, I have the following before any HTML code:

<?php
            session_start();
            session_name("STORE");
            session_set_cookie_params( 'lifetime', '/var/www' );
            session_id('Gingy');
            set_time_limit(2400);
?>

The values of the variables are not visible in all scripts.

New Cookie values are only visible to future server fetches, as they have to travel through the browser when the setting service replies and be presented in the http header to future called services. If the browser is running different services at the same time, the new values are usually not visible to other services.