Making a website similar to ModelMayhem

What do I need to build a website similar to ModelMayhem.com? Will I need to wait 2-3 years till I'm done with my degree before I'll have the necessary skills required to build a similarly styled site like MM?

PS. I'm a noob, I just started Comp Sci at Uni. All help will be greatly appreciated
Website is built using PHP + HTML. This is a C++ forum.
Reason I'm posting here is because they teach C++ in my Comp Sci program so I thought I should sign up

I didn't know that about how websites are built, thanks! So programming languages like C++, Java, Ruby etc aren't used to build web sites like facebook and twitter? Only PHP + HTML? Thanks again for the reply
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