On Thu, Mar 18, 2004 at 02:30:56PM -0500, David T-G wrote:
> Hi, all --
>
> I have an array like
>
> $a =
> array
> (
> 'key' =>
> array
> (
> 'title' => "Topic Title",
> 'content' => "Topic Content",
> ),
> ...
> ) ;
>
> and I'd like to sort the whole thing not on the keys but on the titles.
> It sounds like array_multisort should do exactly what I want, but I can't
> seem to get it to work. For a given source array kind of like
>
> $a
> bookmark
> How To Bookmark
> This is all about bookmarking.
> add
> Adding Pictures
> Let's talk about pictures.
> zebra
> Caught You Here
> This is about zebras but it has a surprise title.
>
> then I want
>
> $a
> add
> Adding Pictures
> Let's talk about pictures.
> zebra
> Caught You Here
> This is about zebras but it has a surprise title.
> bookmark
> How To Bookmark
> This is all about bookmarking.
>
> after sorting.
>
> Will array_multisort sort on an arbitrary key of a multidimensional
> array, or does it just sort multidimensional arrays but only in key
> index priority?
>
> Barring that, I imagine I'd have to either ensure that the array is
> constructed in the proper order or make an index of titles => keys so
> that I could sort that and then pull the key out to display the list.
> Bleah. Once again it would probably be easier to just lay out a DB
> schema!
it looks like array_multisort() will sort one array based on
a sort of another... so you could do something like
// create an array of titles that can be sorted
foreach ($a as $k => $v)
$titles[$k] = $v['title'];
// sort $titles, then sort $a like $titles
array_multisort($titles, $a);
- rob
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
