Well, first, let me say thanks for the compliments! As far as the missing parts, yes, we know those are missing. The Zval implementation was a place-holder to

Well, first, let me say thanks for the compliments! As far as the missing parts, yes, we know those are missing. The Zval implementation was a place-holder to let it work. Now that it's working for basic code, the goal is to refactor in an appropriate design for it. Once that happens, we can implement full copy-on-write. It's very much a work-in-progress... As far as test cases, we've been using the Zend language test cases as part of a guide. Seeing as only about 6% of them pass right now, they are not in the repo. But eventually the goal is to port them in. Once that happens, the next goal is to get it to host run-tests.php (the PHP core test runner). From there, there's one goal left: self-hosting. Thanks again!!!