Re: [RFC] Allow specifying keys in list()

Hi Bishop, Bishop Bettini wrote:

On Sat, Jan 16, 2016 at 9:32 PM, Andrea Faulds <ajf@ajf.me> wrote:

Hi everyone, Here's an RFC that would extend the syntax of list() to be more useful with associative arrays: https://wiki.php.net/rfc/list_keys Please read it and tell me your thoughts.

Nice, Andrea, thanks! Destructuring is quite handy. I wonder if there is opportunity to include array gathering. Something along the lines of: list ('foo' => $foo, ...$rest) = [ 'foo' => 1, 'bar' => 2, 'baz' => 3]; assert $foo === 1; assert $rest === [ 'bar' => 2, 'baz' => 3]; What do you think?

That might be useful, and it's certainly intuitive. In languages with linked lists like Haskell, you can pattern-match the rest of a list, so there's a precedent. Though with linked lists it's an O(1) operation, while this is O(n). I don't think that should go into this RFC specifically, though, but it could be a future enhancement. Thanks! -- Andrea Faulds https://ajf.me/