> number 2 ranked website on the internet runs on PHP The frontend is "PHP", but with a replacement engine, a replacement language, and a replacement standard

> number 2 ranked website on the internet runs on PHP The frontend is "PHP", but with a replacement engine, a replacement language, and a replacement standard library... Having written a bunch of facebook-style Hack and wordpress-style PHP, I would personally consider them about as similar as C++ and Java.