Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
A virtual machine designed for executing programs written in Hack and PHP.

Fix ResourceData assertion when ASAN is enabled.

Summary: We're asserting that ResourceDatas are always slab-allocated.  This isn't the
case with ASAN enabled, because we force all allocations to be big allocations.

Reviewed By: @mxw

Differential Revision: D1889128
latest commit 4018da7f62
Alexander Malyshev alexmalyshev authored hhvm-bot committed

README.md

HHVM

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

HHVM (aka the HipHop Virtual Machine) is an open-source virtual machine designed for executing programs written in Hack and PHP. HHVM uses a just-in-time compilation approach to achieve superior performance while maintaining the flexibility that PHP developers are accustomed to. To date, HHVM (and its predecessor HPHPc before it) has realized over a 9x increase in web request throughput and over a 5x reduction in memory consumption for Facebook compared with the PHP 5.2 engine + APC.

HHVM should be used together with a FastCGI-based webserver like nginx or apache.

FAQ

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

Installing

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

You can install a prebuilt package or compile from source.

Running

You can run standalone programs just by passing them to hhvm: hhvm my_script.php.

If you want to host a website:

  • Install your favorite webserver
  • Install our package
  • Start your webserver
  • Run sudo /etc/init.d/hhvm start
  • Visit your site at http://.../index.php

Our getting started overview 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 (hphp/hack) is licensed under the BSD license (hphp/hack/LICENSE) with an additional grant of patent rights (hphp/hack/PATENTS) except as otherwise noted.

Reporting Crashes

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

Something went wrong with that request. Please try again.