Re: Sort two coupled arrays
| From: | Paul M Foster | Date: | Wed, 07 Apr 2010 21:02:02 +0000 |
| Subject: | Re: Sort two coupled arrays | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-303886@lists.php.net to get a copy of this message | ||
On Wed, Apr 07, 2010 at 04:09:47PM -0400, tedd wrote:
> Hi gang:
>
> Here's the problem -- I want to sort and combine two arrays into one
> sorted array. Here's a real-world example:
>
> Array 1
> (
> [1] => 75
> [2] => 31
> [3] => 31
> [4] => 31
> [5] => 40
> )
>
> Array 2
> (
> [1] => Personal Email
> [2] => Personal Phone
> [3] => Web site
> [4] => Text Message
> [5] => USPS mail
> )
>
> After the operation, I want this:
>
> Array
> (
> [75] => Personal Email
> [40] => USPS mail
> [31] => Personal Phone
> [31] => Web site
> [31] => Text Message
> )
>
> Note: This is a descending-sort of Array 1 while being coupled to
> index of Array 2. In other words, the order of Array 2 depends upon
> the order of Array 1 -- the two arrays are coupled.
>
> I've solved this problem, but my solution is pretty lame. There has
> to be a better/slicker way.
Just so I understand the way arrays work in PHP (gee, I *thought* I
did!), as you add the final three elements in the final array, won't
they overwrite each other? I was under the impression that a
*numerically* indexed array has a constraint that the numeric indexes be
unique, if not contiguous. Am I wrong? If so, please provide a
reference. Or are those "numbers" really strings?
Paul
--
Paul M. Foster