having php code read into the template?

My main template includes the header then the footer right below the header. I want to include php in between the subheaders, php that is in the index file (where I define the main template)

Thanks.

You can use parameter "script" to include a part processed by a PHP script.
Or you can use a PHP global variable to store the content you want to insert. Then you insert it using a Var field.