It depends very much on what you want to "combine". Since PHP and Delphi operates in different ways and because they do not share the same way of eg. displaying interactive elements, it would be nearly impossible to "combine" the two "systems". Also, PHP and Delphi is close when it comes to programming (english words and some logics) so if you know how to CODE (not just draw interfaces!)in Delphi, chance will be that you can get started coding in PHP in no-time - just get to know some commands first.