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Date: Thu, 21 Feb 2013 09:02:44 +0100
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To: Tjerk Anne Meesters <datibbaw@php.net>
Cc: PHP Internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Pull request for array_filter() improvement
From: krebs.seb@gmail.com (Sebastian Krebs)

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2013/2/21 Tjerk Anne Meesters <datibbaw@php.net>

> Hi,
>
> I found myself wanting a feature of array_filter() with which I can perform
> filtering based on the array key instead of the value.
>
> To scratch this itch, I decided to dive into C again and just add the
> feature. My proposal is to add a third argument to array_filter() that will
> send the array keys to the callback.
>

Hi,

Why not simply _always_ push the key to the callback?

Regards,
Sebastian


>
> function myfilter($value, $key)
>     {
>         return $key > 4;
>     }
>
>     array_filter([1, 2, 3, 4, 5, 6, 7], 'myfilter', true);
>     // returns: [6, 7]
>
>
> The pull request can be found here:
> https://github.com/php/php-src/pull/287
>
> If this is useful for the language as a whole, do let me know what else I
> should do to champion it.
>
> Thanks!
>
> --
> --
> Tjerk
>



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