Session in PHP

[hitswa]

this plugin is working fine but when i wants to get the session value in php using $_SESSION[] its not available...

I thing there is only one season exists at once and if this plugin is able to set that session then no matter what it should be accessible by another programming language also...

When I am trying to print print_r( $_SESSION ) in php which is to show all session variables and there values its showing an empty Array()

I am confused if the way this plugin is working is there any real session exists or its just saving some values while moving from page to page.

At the end is there any way to access $.session in PHP?