Google and PHP include redirect

I built a php website using a switch statement to include files like : "index.php?page=home" . This will include the "home.php" page into the index.php page. Also it will include the meta tags and title for that page depending on what "page" is equal to. the home.php file contains a table and some content. At the top of the page, I have this code so that the page can't be shown by itself:


I the index.php file at the top I have this:


Also, I have "mod rewrite" and changed all the links to this:
"nch-home.php" which is really "index.php?page=home".
It all works fine.

My question is what will Google do when it finds the home.php include file? Will it frown upon the header redirect? Can it spider this page?

thanks for any help