A couple of years ago,
Facebook switched its production servers from a PHP-to-C++ compiler to their own HipHop Virtual Machine (HHVM) and then launched a new version of
PHP to run on HHVM called Hack. This comprehensive guide—written by a member of the core HHVM and
Hack teams at Facebook—shows you how to get up and running with both HHVM and Hack.
What makes them useful? The HHVM engine is faster and more performant than the Zend engine, which can save
Facebook and other large-scale sites millions of dollars in servers and maintenance. And while the
Hack language looks and acts like PHP, it also contains new features such as static typing, generics, native collections, which
PHP developers have long needed.
Pick up this book and explore two important
programming innovations that help
Facebook run a tighter ship.