Re: sorting multi array

From:	Myron Turner	Date:	Wed, 25 Apr 2007 12:58:06 +0000
Subject:	Re: sorting multi array
References:	1	Groups:	php.general
Request:	Send a blank email to php-general+get-253695@lists.php.net to get a copy of this message

Jon Bennett wrote:

hi, I have the following array, which I need to sort by quantity... Array ( [2408] => Array

       (
           [name] => Havaianas Top Pink Crystal
           [size] => 5 (37/38)
           [quantity] => 4
       )

[3388] => Array

       (
           [name] => Havaianas Brazil Silver
           [size] => 6/7 (39/40)
           [quantity] => 6
       )

[2666] => Array

       (
           [name] => Havaianas Brasil Black
           [size] => 8/9 (41/42)
           [quantity] => 1
       )

[3210] => Array

       (
           [name] => Havaianas Margaridas Yellow
           [size] => 5 (37/38)
           [quantity] => 1
       )

[2552] => Array

       (
           [name] => Havaianas Flash White
           [size] => 5 (37/38)
           [quantity] => 1
       )

) I need to keep the indexes if poss. Many thanks, jon This works for me:

function cmp($a, $b) { $aq = $a['quantity']; $bq = $b['quantity']; if ($a == $b) {

       return 0;

} return ($aq < $bq) ? -1 : 1; } uasort($data, "cmp");

To reverse the sort order:      return ($aq > $bq) ? -1 : 1;