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Date: Fri, 26 Jan 2018 18:00:29 -0200
Message-ID: <CAEsg9X3oCstySAhni0jOs5Gi1w6ymveGq3zSHAcMQYuCiD9+YQ@mail.gmail.com>
To: Christian Schneider <cschneid@cschneid.com>
Cc: PHP Internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Shorthand proposal for associative arrays
From: david.proweb@gmail.com (David Rodrigues)

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Maybe you should see the extract() method. It will receive strings as
varargs and will create an associative array with the string name and the
value, similar to your first example.

html::img(extract('src', 'alt'));


2018-01-26 16:16 GMT-02:00 Christian Schneider <cschneid@cschneid.com>:

> Hi there,
> I have a proposal for a shorthand notation of associative arrays borrowed
> from another language:
>         :$foo
> would be equivalent to
>         'foo' => $foo
> and would work with array, list or []
>
> Motivation behind it, maybe someone else finds more good uses:
>
> 1) Emulating named parameters with associative arrays like
>         html::img([ 'src' => $src, 'alt' => $alt ]);
>    could be written as
>         html::img([ :$src, :$alt ]);
>    which encourages consistent naming of variables and parameters
>
> 2) Simplifying list destructuring with non-integer keys, example taking
> from http://php.net/manual/en/migration71.new-features.php#
> migration71.new-features.support-for-keys-in-list
>         foreach ($data as ["id" => $id, "name" => $name]) {
>    becomes
>         foreach ($data as [ :$id, :$name ]) {
>    which reduces redundancy.
>
> I implemented a minimal patch (2 lines are added to the parser) to
> implement this which you can find at
>         https://cschneid.com/php/php7_2/assoc_array_shorthand.patch
>
> What do you think, is this worth an RFC? I hope I didn't miss an existing
> one :-)
>
> Regards,
> - Chris
>
>
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>


-- 
David Rodrigues

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