[Workaround found] CodeIgniter 3.0 cannot access native $_SESSION

UPDATE:

Here is my ugly-but-work workaround:
CodeIgniter can't access native session, but external PHP can access CodeIgniter's session like this:

PHP Code:

ob_start();
include('index.php');
ob_end_clean();
$CI =& get_instance();
$CI->load->driver('session');
var_dump($_SESSION); 


This works, but it is actually awkward. When you include "index.php", it will also do all the process in your default controller's. However this is the easiest and best way I can find. Other solution (including decode the cookie) will be very hard.

I encountered a similar problem as you . But when applying this treatment , I get errors .

"Your system folder path does not appear to be set correctly. Please open the following file and correct this: index.php"