

"Hack: a new programming language for HHVM".
Type to learn 4 hack how to#
"Facebook's Hack, HHVM, and the future of PHP". So you want to learn how to hack Well theres a few things you should learn how to do before learning to hack.
Type to learn 4 hack code#
Code must be placed in an entrypoint function. A Hack file does not include the
Hack extends the type hinting available in PHP 5 through the introduction of static typing, by adding new type hints (for example, for scalar types such as integer or string), as well as by extending the use of type hints (for example, for class properties or function return values). A majority of valid PHP scripts are also valid in Hack however, numerous less frequently used PHP features and language constructs are not supported in Hack. Hack is designed to interoperate seamlessly with PHP, which is a widely used open-source scripting language that has a focus on web development and can be embedded into HTML.

Before the announcement of the new programming language, Facebook had already implemented the code and "battle tested" it on a large portion of its web site.
