For quite some time we run the unit tests for our libs and tools against PHP and HHVM, at least that is what I thought up to now. As it turns out I missed a minor detail. In our Jenkins job we invoke the Phing task like this:
After trying to get a few application to run on hhvm I came across the following error:
UPDATE (04/2014): Since Facebook decided to remove the webserver functionality from the "official" binaries this howto will not work anymore! Read here how to set things up with the current version of hhvm.