sort a multidimensional array using array_multisort

Question

I have this array

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


        

Answer 1

This code helps to sort the multidimensional array using array_multisort()

  $param_dt = array();
  foreach ($data_set as $key => $row) {
     if(isset($row['params']['priority']))
     {
       $param_dt[$key] = $row['params']['priority'];
     }
     else
     {
        $param_dt[$key] = -2; // if priority key is not set for this array - it first out
     }
    }

  array_multisort($param_dt, SORT_ASC,SORT_NUMERIC, $data_set); 

Now $data_set has the sorted list of elements.