"php include(filename)" is already being used. I was looking for a way to place it in a specific spot on the web page and be able to position it to my liking. I ended up going with iframe. I tested it in firefox and it works fine. Im assuming other browsers have adopted iframe by now also so I'll just stick with iframe and I'll figure out something else if it becomes problematic.
Thank you for your feedback though, Emily, I appreciate it! =]