Facebook's been using Hack for close to a decade now. Hack still strongly resembles PHP, but it's taken a different direction from PHP 7 and HHVM is no longer i

Facebook's been using Hack for close to a decade now. Hack still strongly resembles PHP, but it's taken a different direction from PHP 7 and HHVM is no longer intending to be an alternative PHP runtime (https://hhvm.com/blog/2017/09/18/the-future-of-hhvm.html https://hhvm.com/blog/2017/09/18/the-future-of-hhvm.html).