Learn Hack - 10 Code Examples & CST Typing Practice Test
Hack is a programming language developed by Facebook as a dialect of PHP. It adds static typing, enhanced performance, and modern programming features while maintaining compatibility with PHP, enabling rapid development of large-scale web applications.
Learn HACK with Real Code Examples
Updated Nov 20, 2025
Monetization
High-performance web apps
Backend services for large-scale systems
Enterprise PHP modernization projects
Consulting on Hack adoption
Training for Hack developers
Future Roadmap
Maintain compatibility with PHP
Enhance async and concurrent features
Expand collection types and shapes
Improve HHVM performance and tooling
Grow community adoption and support
When Not To Use
Small-scale PHP projects
Environments without HHVM support
Non-web applications
Projects requiring extensive PHP library support
Legacy PHP hosting without Hack compatibility
Final Summary
Hack is a modern dialect of PHP with static typing and async support.
Runs on HHVM and enables type-safe, high-performance web applications.
Compatible with PHP codebases while adding modern language features.
Ideal for large-scale, maintainable web development.
Faq
Is Hack still used?
Yes, primarily in Facebook and HHVM-based projects.
Can Hack run on standard PHP?
No, it requires HHVM runtime.
Why learn Hack today?
For type-safe, high-performance PHP web development.
Is Hack open-source?
Yes, available under MIT license.
Frequently Asked Questions about Hack
What is Hack?
Hack is a programming language developed by Facebook as a dialect of PHP. It adds static typing, enhanced performance, and modern programming features while maintaining compatibility with PHP, enabling rapid development of large-scale web applications.
What are the primary use cases for Hack?
Large-scale web application development. Maintaining and modernizing PHP codebases. Developing scalable backend services. Improving code safety with static typing. Rapid iteration and prototyping in web projects
What are the strengths of Hack?
Improves reliability with static typing. Maintains compatibility with existing PHP code. Enhances code readability and maintainability. Optimized for large-scale web applications. Supports modern programming patterns
What are the limitations of Hack?
Primarily used within Facebook or HHVM ecosystems. Smaller community compared to mainstream PHP. Requires HHVM runtime, not standard PHP engine. Not ideal for small-scale or non-web projects. Learning curve for developers new to static typing
How can I practice Hack typing speed?
CodeSpeedTest offers 10+ real Hack code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.