[protolif]

Obviously, this is because PHP doesn't scale.

[elorant]

I don't know if you've ever heard about a site called Facebook.

[pjmlp]

Which translates PHP to C++ code via HipHop compiler.

[WayneDB]

So, I guess they found a way to scale PHP then, didn't they?

<Insert obligatory comment about how all code is translated to something else before execution>