I have just succesfully installed ZenCart on HHVM. And it's blazing fast (after the first JIT run)

There was quite alot of tweaking in the database connection and query system... Mostly stuff that was silenced with error supression operator @

Anyone else played around with HHVM?

I'm using HHVM 3.7.0 through nginx fastcgi.

I'll play around with it a little and see what happens.