Using Hiphop for PHP static analysis

1. Install hiphop on Ubuntu ( I just got an AWS EC2 instance) following these steps :
https://github.com/facebook/hiphop-php/wiki/Prebuilt-Packages-on-Ubuntu-12.04

2. Then run the hiphop command for static code analysis :
hhvm --hphp --target hhbc --input-list /tmp/files.list --output-file hhvm.hhbc.sq3