What is the Difference between php hypertext pre-processor and hyper text mark uplanguage?

Well their is a quite big difference between them. a mark-up language um i wouldn't call it a actual programming language, to basic. It deals mostly with the visual aspects interface of a website, where php deals with the side server aspects, which process information which control the processing of information and data accross your a website etc... so i guess the main difference is... mark-up language is used to show the visual interface of a website, php is for functionality. i don't consider mark up languages as a actual true programming language