How can I Compare multiple ids in where condition

I have multiple ids in my $temp like(7,8,9) and I want to compare there ids in my where condition like $this->db->where_in('c.mr_no',$temp); but it compare only first id

I am trying like this:

Controller:

public function printCollectionRecPage()
{
    $this->load->view('template/header');
    $this->load->view('template/sidebar');

    $temp    =($_GET['id']); 
    $data    = array();

    $data['collnR'] = $this->PayRecAllModel->printCollectionRecPage($temp);

    $this->load->view('crossing/payment_rec_allocation/printCollectionRecovery',$data);
    $this->load->view('template/footer');
}

Model:

public function printCollectionRecPage($temp)
{
    $this->db->select('c.*,payment_rec_allocn.*');
    $this->db->from('crossing_cash_memo c');
    $this->db->join('payment_rec_allocn', 'payment_rec_allocn.mr_no = c.mr_no');
    $this->db->where('c.total !=','0');
    $this->db->where('c.mr_no',$temp);
    $query = $this->db->get();
    return $query->result();
}    

I want to compare all 3 ids in where condition.

Answer

I think you are receiving an string from $_GET and hence the comparisions are not working as expected.

Change this

$this->db->where('c.mr_no',$temp);

to

$temp = explode(",", $temp);
$this->db->where_in('c.mr_no',$temp);

and then try. Where_in excepts the parameter to be an array.