How do I access Session variables in Drupal that were set on non-drupal pages? If I go print_r($_SESSION) on a drupal page (say mysite.com/ )I only get Session variables set from drupal pages (which are none atm). I can set new ones and they'll show up.

Array
(

) 


However If I print_r($_SESSION) on a non-drupal page (say mysite.com/somefolder/index.php) on the same domain I get a different (and desired) array: 

Array
(
    [last_url] =&gt; /downloads/full.php
    [ip] =&gt; ::1
    [address1] =&gt; 
    [address2] =&gt; Australia
    [zip] =&gt; 
    [phone] =&gt; 
    [fax] =&gt; 
    [dealer] =&gt; 
    [referral] =&gt; 
    [software] =&gt; 
    [searchTerms] =&gt; 
    [user_type] =&gt; user
) 


I have session_start(); at the beginning of all files.

How does my site seemingly have two $_SESSION arrays? How can I access my $_SESSION vars set on non-drupal scripts within drupal pages?

Thanks
You also need to boostrap drupal before use drupal's sessions (here: Properly bootstrap drupal for standalone PHP file?)