Codeigniter and Hack Language
I am wondering how and if it is possible to run Hack code with HHVM in codeigniter models and controllers.
Oops! Hack is fully backward compatible with PHP. You should start by making sure CodeIgniter is running on HHVM. 100% of its unit tests are passed over HHVM , so I expect you to be very lucky with that.
Then you can just start writing Hack code right next to CodeIgniter. HHVM will allow Hack to call PHP and PHP to call on Hack without issue. The Hack type system doesn't know anything about PHP code, so it won't be able to help you with type errors at the boundary, but everything will work.
Also are there any active efforts to port PHP frameworks like CI to Hack?
I don't know anyone right now. Contrary to what the other answer said, this would definitely be a rewarding challenge! Even if CI didn't want to take advantage of the many benefits of the Hack language , if they even wanted to add type annotations, this would definitely help anyone who wanted to use CI with Hack! Therefore, converting an existing project to Hack has certain benefits for users, and you can continue to gradually use more Hack features.
The main problem is that Hack only works on HHVM; existing CI users will not be able to use PHP5 engine. The Hack team has a solution for this, we are going to announce very soon, stay tuned :)
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I am wondering how and if it is possible to run Hack code with HHVM in codeigniter models and controllers.
The hacking code will execute anywhere that PHP does - all it takes is change the tags <?php
to <?hh
(which is a "find and replace" that you can really do without it by lifting everything up !!!!)
However, you need to have H the ip H Press the op the V irtual M achine ( HHVM ) running on your server.
Also are there any active efforts to port PHP frameworks like CI to Hack?
NO - and that would be pointless - HHVM is meant to run PHP (literally it was designed to compile PHP to bytecode), Hack is just an extension of the PHP language (not exactly a simple explanation)
Good news?????? - you can just dump the CI directly to your server and run it through HHVM and you will benefit from the speed of the Just In Time compiler !!!!! It works right out of the box (apparently - haven't tried it, but tried Laravel and it works great with very little setup!)
I think you misunderstood that Hack and HHVM are actually so hoping that this clarifies a little.
IN SUMMARY
HHVM is a virtual machine service that runs on your server that changes PHP from a dynamic language to a compiled (Just-In-Time) language, making it much faster (dumbly fast, I mean)
Hack is a language that runs on HHVM and will play very well with PHP - think of it as an extension to PHP, not a replacement.
Anything written in PHP can be extended / written from TODAY on Hack.
YOU COULD rewrite some parts of PHP to take advantage of some of the "extra" hacks it gives you, but it looks like "over-optimization" to me.
Hope this helps and is clear.
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