sort a multidimensional array using array_multisort

Question

I have this array

Array
(
    [0] => Array
        (
            [brand] => blah blah
            [location] => blah blah
            [address] =>         


        

Answer 1

You need to extract all the distances first, then pass both the distance and the data to the function. As shown in example 3 in the array_multisort documentation.

foreach ($data as $key => $row) {
    $distance[$key] = $row['distance'];
}

array_multisort($distance, SORT_ASC, $data);

This assumes you want the shortest distances first, otherwise change the SORT_ASC to SORT_DESC