php installation

Hello, I recently installed php on Apache 2, I can get to the page I created, but when I get there it is just plain php coding. I dont see any php code produced. I did this from a installation guide in the Practical web Pages magazine. It said if I see code to check the AddType code, where I had to add "AddType application/x-httpd-php. php" this is correct according to the tutorial, but it still doesnt work. Any help? Thank you Aaron