Need Separate Variable file built for html pages.

Need a? Variable file build for a site that has both php and html pages.? Im? needing a file created that I can place data like the site name and mysql logins and passwords along with data like google analytics ua #'s. Im needing just one of the pages modifyed to work(i can do the rest), i will include the page, if you can provide me the coding to make this work and the type of file that can be used to make this work.