Facebook has released a programming language called Hack, which marries the ease of PHP with the rigorous safety ... used by large software teams to design mission-critical applications.

But according to some who have used it or who know the past work of those who built it, Hack has a design ... a new programming language. There's a fine line here between an update to PHP and ...

Facebook has released a programming language called Hack, which marries the ease of PHP with the rigorous safety ... used by large software teams to design mission-critical applications.