What do the PHP pages do that you want to include ?
If they pull in content from a database you could create a single query to do the job of all of those pages.
In principal at least, it is possible to create an HTML page in Dreamweaver but save it with a .php file extension.
You can then use file includes to dump the output of one PHP page into another, like this:
So you'd end up with something like this:
If this page is saved as a .php file when the server processes it, it produces the HTML in the page including whatever content the pagename.php file adds to the mix and sends it back to the site visitors browser as plain HTML content.
This is a very simple example and if you have several pages you want to include or reference it could get very messy and overly complex.
How far along with PHP are you or are you new to it ?
There may well be a simpler and more efficient method of doing what you want.
Try to give as much detail as you can and one of us will try to help you.