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Description

HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP. HHVM uses a just-in-time (JIT) compilation approach to achieve superior performance while maintaining the development flexibility that PHP provides.

HHVM supports Hack, PHP 5 and the major features of PHP 7. We are aware of minor incompatibilities, so please open issues when you find them. HHVM also supports many extensions as well.

HHVM should be used together with a webserver like the built in, easy to deploy Proxygen, or a FastCGI-based webserver on top of nginx or Apache.

Code Quality Rank: L1
Programming language: C++
Tags: Virtual Machines    
Latest version: v2020.06.04

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README

HHVM

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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.

HHVM should be used together with a webserver like the built in, easy to deploy Proxygen, or a FastCGI-based webserver on top of nginx or Apache.

Installing

If you're new, try our getting started guide.

You can install a prebuilt package or compile from source.

Running

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 http://.../main.hack

Our getting started guide provides a slightly more detailed introduction as well as links to more information.

Contributing

We'd love to have your help in making HHVM better. If you're interested, please read our [guide to contributing](CONTRIBUTING.md).

License

HHVM is licensed under the PHP and Zend licenses except as otherwise noted.

The [Hack typechecker](hphp/hack) is licensed under the MIT [License](hphp/hack/LICENSE) except as otherwise noted.

Reporting Crashes

See Reporting Crashes for helpful tips on how to report crashes in an actionable manner.

Security

For information on reporting security vulnerabilities in HHVM, see [SECURITY.md](SECURITY.md).

FAQ

Our user FAQ has answers to many common questions about HHVM, from general questions to questions geared towards those that want to use.

There is also a FAQ for contributors to HHVM.


*Note that all licence references and agreements mentioned in the HHVM README section above are relevant to that project's source code only.