Well, first of all, you declare the variables with public, but you seem to have forgotten than for the functions. They need to be declared aswell, with private/protected/public.

Also, I would keep the variables as private, and the functions as public.

The links (next link/prev link, etc), shouldn't be an actual link that is returned. Because the user might not want to have ?page, but only ?p=

Anyways, I'll look more deeper when I get home!