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Re: multi-dimensional array sorting by index (like a table) [message #176360 is a reply to message #176359]

Wed, 28 December 2011 01:12

Michael Joel
Messages: 42
Registered: October 2011

Karma:

Member

On 28 Dec 2011 00:39:35 GMT, Denis McMahon <denismfmcmahon(at)gmail(dot)com>
wrote:

> On Tue, 27 Dec 2011 19:24:05 -0500, Michael Joel wrote:
>
>> On Wed, 28 Dec 2011 01:03:22 +0100, Thomas Mlynarczyk
>> <thomas(at)mlynarczyk-webdesign(dot)de> wrote:
>
>>> Michael Joel schrieb:
>
>>>> I am guessing there is no php function to handle sorting an array as
>>>> you could a database? Meaning I want a multi-dimensional array sorted
>>>> by index 0, and "sub sorting" (whatever you call it) using index 4?
>
>>> Have a look at http://de3.php.net/array_multisort.
>
>> Yes I saw that but I couldn't seem to get it to work. It says it will
>> sort a multi-dimensional array by an index. I tried and it just kept
>> spitting errors at me. I test the arrays to make sure they contained
>> data I expected.
>
> The way I read it (example 3), assuming your 2d array is $data containing
> 1d arrays of 5 or more elements:
>
> $k1 = $k2 = array();
> foreach ($data as $key => $row) {
> $k1[$key] = $row[0];
> $k2[$key] = $row[4];
> }
> array_multisort($k1, SORT_DESC, $k2, SORT_DESC, $data);
>
> but I haven't tried this.
>
> Mind you, I haven't tried the other solution that I posted earlier
> either, although I have used similar code in practice.
>
> Rgds
>
> Denis McMahon

Ahh. I see how it is working now.
This I think is what I am needing - will test it.

Thanks all
Mike

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[Message index]

		multi-dimensional array sorting by index (like a table) By: Michael Joel on Tue, 27 December 2011 20:25
		Re: multi-dimensional array sorting by index (like a table) By: The Natural Philosoph on Tue, 27 December 2011 21:07
		Re: multi-dimensional array sorting by index (like a table) By: Denis McMahon on Tue, 27 December 2011 23:16
		Re: multi-dimensional array sorting by index (like a table) By: Thomas Mlynarczyk on Wed, 28 December 2011 00:03
		Re: multi-dimensional array sorting by index (like a table) By: Michael Joel on Wed, 28 December 2011 00:24
		Re: multi-dimensional array sorting by index (like a table) By: Denis McMahon on Wed, 28 December 2011 00:39
		Re: multi-dimensional array sorting by index (like a table) By: Michael Joel on Wed, 28 December 2011 01:12
		Re: multi-dimensional array sorting by index (like a table) By: Michael Joel on Wed, 28 December 2011 03:50

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