setting PHPSESSID for current page

[Anon]

Hi,

I'm trying to check $HTTP_REFERER and if the condition is met, start the session using:

if (eregi("cartserver", $HTTP_REFERER)) {
session_start();

now in that same page passes the above test, if I check if PHPSESSID is set

if (isset($PHPSESSID)) {
show what I want
}

it doesn't "show what I want" and the PHPSESSID is not set if I echo it; however, the when I visit the next page (any page), PHPSESSID is set and I get what I want.

How can I get that variable set (or any variable set; i've tried cookies with the same result) for the page that sets the variable?

thanks

chris

[Anon]

session_id -- Get and/or set the current session id