HACK
PHP Dialect
// OVERVIEW
Hack is a dialect of PHP created by Facebook. It adds static typing and other modern features to PHP while maintaining backward compatibility.
Static Typing
Type safety system
PHP Compatible
Backward compatible
Modern Features
Async, generics
examples.txt
// USE CASES
Web Development
Server-side scripting
Type Safety
Large codebases
PHP Migration
Gradual typing
Facebook Stack
Internal systems