A simple tool for installing language extensions with composer for HHVM and PHP on debian based systems.

1. Install the hhvm-nightly and hhvm-dev-nightly packages (some important features and bug fixes are not in the current release). You will also need Composer itself. Composer can be installed from the composer.phar executable or the installer.

   $ curl -sS https://getcomposer.org/installer | php

2. Make a composer.json for your project. See this example for an example. Note that this has not gone on packagist so we need to use VCS until then.

3. Run hhvm composer.phar install and follow the instructions. The plugin will build all the extensions you need and will place an ini file containing a list of all the extensions in vendor/ext/extensions.ini

4. Finally, you can now run hhvm -c <path-to-project>/vendor/ext/extensions.ini <path-to-project>/<your-main-file>.php to run your project.