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Re: Array_multisort help please [message #170285 is a reply to message #170284]

Tue, 26 October 2010 18:20

MikeB
Messages: 65
Registered: September 2010

Karma:

Member

Denis McMahon wrote:

>
> If you replace the line:
>
> array_multisort($array1,SORT_REGULAR);
>
> with the following:
>
> // starts here
> ksort($array1);
> foreach ($array1 as $key => $value) {
> ksort($value);
> $array1[$key] = $value;
> }
> // ends here
>
> Do you get the result you want?
>

Dennis, thank you, it does indeed.

I had to spend quite some time to try and figure out what your code was
doing, so if you don't mind, can you please check my comments and tell
me if I figured it out correctly?

> ksort($array1);

Sort the outer (high-level index of the array

> foreach ($array1 as $key => $value) {

iterate through each of the high-level indexes of the array, with
"$value" being a new array containing the sub-array that was in that key.

> ksort($value);

sort the sub-array

> $array1[$key] = $value;

replace the previous sub-array in $array1 with the new, sorted sub-array.

> }

So
essentially there isn't an in-place sort that would have done what I
wanted to do and this is a slick method to simulate that?

MikeB

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[Message index]

		Array_multisort help please By: MikeB on Tue, 26 October 2010 15:45
		Re: Array_multisort help please By: Denis McMahon on Tue, 26 October 2010 17:33
		Re: Array_multisort help please By: MikeB on Tue, 26 October 2010 18:20
		Re: Array_multisort help please By: Denis McMahon on Tue, 26 October 2010 21:22

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