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Date: Thu, 21 Feb 2013 15:08:58 +0800
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Subject: Pull request for array_filter() improvement
From: datibbaw@php.net (Tjerk Anne Meesters)

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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.

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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