xml generator

[urgido]

Which is the best solution in order that my users could generate files XML of my pages making in PHP?

[Alex Vincent]

Probably one you write yourself.

This isn't facetious; RDF is not very efficient, and I'm not sure what else you might mean (besides "vanilla", or custom-designed, XML).

We don't have enough information about what you have and what you want your users to have for us to help you.