Jordan DeLong
fa6f3f7e12
Throws the aliased class into a target cache slot for the new
name. Handles errors when you try to re-alias a class, but doesn't
restrict a few other cases zend does:
- If you implement an interface twice, zend complains (one of the
alias tests checks this). I tried turning it on, but we violate
it in systemlib currently so I left it off.
- class_alias_014.php does some namespace stuff I don't quite grok.
(@ptarjan let me know what to do if it's easy).
- inter_007.php uses class_alias, but is testing a warning that
happens even with out it. (We don't raise this warning.)
- zend raises a warning if you try to class_alias a non-user-defined
class; I left this out.
HipHop VM for PHP 
HipHop VM (HHVM) is a new open-source virtual machine designed for executing programs written in PHP. HHVM uses a just-in-time compilation approach to achieve superior performance while maintaining the flexibility that PHP developers are accustomed to. HipHop VM (and before it HPHPc) has realized > 5x increase in throughput for Facebook compared with Zend PHP 5.2.
HipHop is most commonly run as a standalone server, replacing both Apache and modphp.
Installing
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.
HipHop bundles in a webserver. So if you want to run on port 80 in the current directory:
sudo hhvm -m server
For anything more complicated, you'll want to make a config.hdf and run sudo hhvm -m server -c config.hdf.
Contributing
We'd love to have your help in making HipHop better. If you run into problems, please open an issue, or better yet, fork us and send a pull request. Join us on #hhvm on freenode.
If you want to help but don't know where to start, try fixing some of the Zend tests that don't pass. You can run them with hphp/test/run. When they work, move them to zend/good and send a pull request.
Before changes can be accepted a Contributors Licensing Agreement (pdf - print, sign, scan, link) must be signed.
Licence
HipHop VM is licensed under the PHP and Zend licenses except as otherwise noted.