I have adjoined successfully an Ubuntu server 12.04 to a Windows Active Directory (AD). (How: http://www.iasptk.com/ubuntu/21071-join-an-ubuntu-server-or-desktop-to-active-directory-).
Now all Windows AD users can login to this server with their AD account.
In this server is running a php application.
Is it possible the Windows AD users to login also in the php app with their AD account?