Skip to content
Please note that GitHub no longer supports your web browser.

We recommend upgrading to the latest Google Chrome or Firefox.

Learn more

/hhvm

A virtual machine for executing programs written in Hack.
hhvm php hack hacklang
  1. C++ 61.3%
  2. PHP 12.7%
  3. Hack 11.4%
  4. OCaml 10.6%
  5. C 1.6%
  6. JavaScript 0.9%
  7. Other 1.5%
Branch: master
Find File
Clone or download

Clone with HTTPS

Use Git or checkout with SVN using the web URL.

Download ZIP

Launching GitHub Desktop...

If nothing happens, download GitHub Desktop and try again.

Launching GitHub Desktop...

If nothing happens, download GitHub Desktop and try again.

Launching Xcode...

If nothing happens, download Xcode and try again.

Launching Visual Studio...

If nothing happens, download the GitHub extension for Visual Studio and try again.

@fredemmott @hhvm-bot
fredemmott and hhvm-bot update hphp/runtime/version.h 
Reviewed By: kmeht

Differential Revision: D14875522

fbshipit-source-id: 809ddf921f33c2ec8ff4725f6685bd2b3ff3dc2c
Latest commit 1f77a40 Apr 10, 2019
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
CMake Consider a DebugOpt and Debug build equivalent in terms of the -DNDEBUG. Apr 9, 2019
hphp update hphp/runtime/version.h Apr 11, 2019
patches
third-party @ 20e77d3
.gitignore Update .gitignore (#8479) Apr 8, 2019
.gitmodules
CMakeLists.txt
CODE_OF_CONDUCT.md Add Code of Conduct Feb 8, 2018
CONTRIBUTING.md
ISSUE_TEMPLATE.md more detailed github issue template May 18, 2018
LICENSE.PHP
LICENSE.ZEND
README.md
configure

README.md

HHVM

HHVM page | HHVM documentation | Hacklang page | General group | Dev group | Twitter

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 the development flexibility that PHP provides.

HHVM is intended for Hack projects, and also supports a large subset of PHP 7 that is required by common tools and libraries. We no longer recommend using HHVM for purely PHP projects.

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 in to 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.

License

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.

Reporting Crashes

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

Reporting and Fixing Security Issues

Please do not open GitHub issues or pull requests - this makes the problem immediately visible to everyone, including malicious actors. Security issues in HHVM can be safely reported via HHVM's Whitehat Bug Bounty program:

https://www.facebook.com/whitehat

Facebook's security team will triage your report and determine whether or not is it eligible for a bounty under our program.

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.

You can’t perform that action at this time.