Order mutidimensional Array

function array_qsort (&$array, $column=0, $order=SORT_ASC, $first=0, $last= -2)
{
  // $array  - the array to be sorted
  // $column - index (column) on which to sort
  //          can be a string if using an associative array
  // $order  - SORT_ASC (default) for ascending or SORT_DESC for descending
  // $first  - start index (row) for partial array sort
  // $last  - stop  index (row) for partial array sort
  // $keys  - array of key values for hash array sort
 
  $keys = array_keys($array);
  if($last == -2) $last = count($array) - 1;
  if($last > $first) {
   $alpha = $first;
   $omega = $last;
   $key_alpha = $keys[$alpha];
   $key_omega = $keys[$omega];
   $guess = $array[$key_alpha][$column];
   while($omega >= $alpha) {
     if($order == SORT_ASC) {
       while($array[$key_alpha][$column] < $guess) {$alpha++; $key_alpha = $keys[$alpha]; }
       while($array[$key_omega][$column] > $guess) {$omega--; $key_omega = $keys[$omega]; }
     } else {
       while($array[$key_alpha][$column] > $guess) {$alpha++; $key_alpha = $keys[$alpha]; }
       while($array[$key_omega][$column] < $guess) {$omega--; $key_omega = $keys[$omega]; }
     }
     if($alpha > $omega) break;
     $temporary = $array[$key_alpha];
     $array[$key_alpha] = $array[$key_omega]; $alpha++;
     $key_alpha = $keys[$alpha];
     $array[$key_omega] = $temporary; $omega--;
     $key_omega = $keys[$omega];
   }
   array_qsort ($array, $column, $order, $first, $omega);
   array_qsort ($array, $column, $order, $alpha, $last);
  }
}