[RFC][Discuss] Arrow Functions

Bob Weinand and I are happy to announce that the [Arrow Functions][1] RFC is moving into the public discussion phase. We have been collaborating on this RFC for many months now and finally have a proposal we are happy to discuss in the open. Here is an example of an existing closure: function ($x) use ($arr) { return $arr[$x]; } This RFC proposes syntax and semantics to simplify this common usage to: fn($x) => $arr[$x] More details are in the RFC. The [implementation][2] currently has no known issues and is ready for you to download, build and test, which we encourage you to do. We look forward to a productive discussion period and are happy to answer questions. For historical purposes, the revision of this RFC is currently at [1485798604][3]. [1]: https://wiki.php.net/rfc/arrow_functions [2]: https://github.com/morrisonlevi/php-src/tree/arrow_functions [3]: https://wiki.php.net/rfc/arrow_functions?rev=1485798604