Tutorial: How to install Facebook’s HHVM on Ubuntu 18.04

Introduction:

HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP 5 and 7. It achieves superior performance compared to the Zend Engine by utilizing a just-in-time (JIT) compilation approach.

Hack is an open-source dialect of PHP created by Facebook, its most distinct feature is gradual…