Php Iframes


Ok, once i was fairly good at php and owned a fairly big site but i got tired of that site and quit html php and java, now (years later) i am making a site but have forgotten most php…i want to use the include script to add a page to the center of my page, like an iframe…but i have forgotten the code u need to make it work with the links…please help :-?
I think the link is something like but i need to know the code u put where u want the content to appear.


Include -
orare you talking about $_GET -