Altering array keys

[vaillant]

Hi,

$catalog is a 2d array.

By doing this:

foreach($catalog as $key => $value)
               {
                  echo $key."=>".$catalog[$key]['desc']." ".$catalog[$key]['price']."
";
               }

I get this:

101=>AA batteries (pack of 2) 2.90
102=>AA batteries (pack of 4) 5.49
103=>Backpack (black) 69.99
104=>Money belt with 6 compartments 13.49
105=>Haversack (red) 199.99
106=>Swiss Army knife (6 blades) 24.00
107=>Duffel bag (steel gray) 28.50

Now when I do:

sort($catalog);
               foreach($catalog as $key => $value)
               {
                  echo $key."=>".$catalog[$key]['desc']." ".$catalog[$key]['price']."
";
               }

[PhPHelper]

is there a question in there somewhere? I don't follow.