CodeIgniter - Set Session

if ($query -> num_rows == 1) {
	$row = $query -> row();
}
$data = array('personId' => $row -> personId, 'name' => $row -> pName, 'email' => $row -> pEmail, 'id' => $row-			>identificationId, 'loginAs' => $type);
$this -> session -> set_userdata($data);