Printing $this->db->query() result problem

[eluser]veledrom[/eluser]

Code:

$data['db_resultset'] = $this->db->query("SELECT * FROM .....");
OR
$data['db_resultset'] = "String message";

Code:

$result_set = $db_resultset->result();

If I use line above in view I get error: Fatal error: Call to a member function result() on a non-object in....

What I need in my view is something like this:

Code:

if(is_array($result_set))
{
  print_r($result_set);
}
else
{
  echo $result_set;
}

I tried but is_array() doesn't work.

Thanks in advance