$row = $mailing1->fetch_assoc();
foreach ($row as $column => $value) {
echo $column;
};function sort_array_by_keys_and_values($arr) {
$k = array_keys($arr);
$v = array_values($arr);
sort($k);
sort($v);
return array_combine($k, $v);
}$new_array = sort_array_by_keys_and_values( $my_super_array );