I'm not sure I understand. Is this the framework that "compiles" PHP?<p>Is the 15% performance increase relative to vanilla PHP or to a previous version of HHVM?
I wonder how hard it would be (for me) to take php and change all function names to be consistent. All PascalCase and spelled out (no awful abbreviations). Then download the documentation and change it there as well.
Does anyone have an easy method of testing HHVM on your website?<p>I was thinking of recording the production requests for x amount of time and replaying them on HHVM so you could see if responses are identical, there are no crashes, state of the database is same afterwards, etc.?
With the recent discussion on the origins of PHP function names, and about what, if anything, can be done to fix PHP without ruining it...I'm curious about what happens at Facebook. Besides HipHop, do they maintain a strict PHP style among their developers? Even if HipHop can handle all of PHPs variations, I imagine there's time saved by writing optimally-designed (for the human) code, too?