Updating using PHP

[mjvndhsb]

I currently have a website set up in PHP format; a menu, header and body section. My primary reason I use this format is to have the ability to change one item in particular once (eg: a menu item) and have the entire site updated without having to modify each and every HTML page within the site. I�m wondering if this is the best format to use or is there a better solution which will return the same results. Would ASP be a consideration? Any help greatly appreciated.