Hack

HHVM is an open-source virtual machine designed for executing programs written in Hack. HHVM uses a just-in-time (JIT) compilation approach to achieve superior performance while maintaining amazing development flexibility. You can run standalone programs just by passing them to hhvm: hhvm example.hack . If you want to host a website: Install your favorite webserver. Proxygen is built into HHVM, fast and easy to deploy. Install our package Start your webserver Run sudo /etc/init.d/hhvm start Visit your site at Our getting started guide provides a slightly more detailed introduction as well as links to more information. We'd love to have your help in making HHVM better. If you're interested, please read our guide to contributing. HHVM is licensed under the PHP and Zend licenses except as otherwise noted. The Hack typechecker is licensed under the MIT License except as otherwise noted. The Hack Standard Library is licensed under the MIT License except as otherwise noted. Our user FAQ has answers to many common questions about HHVM, from general questions to questions geared towards those that want to use.