TalkPHP - View Single Post - How to sort a multi-array

benton · 07-15-2008, 01:33 AM

I have an array like this

PHP Code:


			
 Array

(

    [1] => Array

        (

            [52] => Milk Chocolate

            [221] => Vanilla Bean

            [212] => Banana Cream

            [80] => Chocolate Peanut Butter

        )



)

I need to have it sorted on the value. The only examples I can find for doing this are those using multisort but that resets the keys, which won't work in this case. I tried using usort with a callback function like this but it failed.

PHP Code:


			
function cmp($a, $b)

{

    if ($a == $b) {

        return 0;

    }

    return ($a < $b) ? -1 : 1;

}

foreach ($myarray as $sub)

 $myarray[$sub] = usort($sub, cmp);

Would someone please point out my mistake or how best to do this?

07-15-2008, 01:33 AM	#1 (permalink)
benton The Contributor Join Date: Apr 2008 Posts: 78 Thanks: 0	How to sort a multi-array I have an array like this PHP Code: `Array ( [1] => Array ( [52] => Milk Chocolate [221] => Vanilla Bean [212] => Banana Cream [80] => Chocolate Peanut Butter ) )` I need to have it sorted on the value. The only examples I can find for doing this are those using multisort but that resets the keys, which won't work in this case. I tried using usort with a callback function like this but it failed. PHP Code: `function cmp($a, $b) { if ($a == $b) { return 0; } return ($a < $b) ? -1 : 1; } foreach ($myarray as $sub) $myarray[$sub] = usort($sub, cmp);` Would someone please point out my mistake or how best to do this?