am using sql code for foreach in codeigniter but there are some small problems

am using sql code for foreach in codeigniter but there are some small
problems

function get_contents() {
$this->db->select('question_no');
$this->db->from('questionnaire');
$this->db->group_by('question_no');
$query = $this->db->get();
$results = $query->result();
//print_r($results);exit;
$result_array = array();
foreach ($results as $row){
$this->db->select_avg('questionnaire.organization_answer_rating');
$this->db->from('questionnaire');
$this->db->where('questionnaire.question_no',$row->question_no);
$query = $this->db->get();
$result = $query->result();
$this->db->select_avg('questionnaire.workgroup_answer_rating');
$this->db->from('questionnaire');
$this->db->where('questionnaire.question_no',$row->question_no);
$query = $this->db->get();
$result1 = $query->result();
$info['question_no'] = $results;
$info['organization_answer_rating'] = $result;
$info['workgroup_answer_rating'] = $result1;
$result_array[]= $info;
echo '<pre>';print_r( $result_array);exit;
}
return $result_array;
}
am using the above code in which when am printing result array am getting
output as
Array
(
[0] => Array
(
[question_no] => Array
(
[0] => stdClass Object
(
[question_no] => 1
)
[1] => stdClass Object
(
[question_no] => 2
)
)
[organization_answer_rating] => Array
(
[0] => stdClass Object
(
[organization_answer_rating] => 3.0000
)
)
[workgroup_answer_rating] => Array
(
[0] => stdClass Object
(
[workgroup_answer_rating] => 3.0000
)
)
)
)
i need to get all these in same array and also one more problem is that am
getting all the questions in db but i need to get particular question_no
in that array. can someone guide me and say me what was the problem and
how to rectify it please. thanks.