> It costs less to hire an army of PHP devs and a small team to optimize PHP, than it does to hire an army of Java developers. Is that what Facebook is doing?

> It costs less to hire an army of PHP devs and a small team to optimize PHP, than it does to hire an army of Java developers. Is that what Facebook is doing? Everything I've read about interviewing and getting hired at Facebook leads me to believe that they are not hiring an army of cheap PHP developers.