MongoDB in Codeigniter - index file

function index()
{
    // Find all members, limit by 5, order by date
    $members = $this->Users->getAll(5,array('date' => -1)); 
    $data = array(
        'members' => array() 
    );
    while($members->hasNext()){ // While we have results
        $member = $members->getNext();// Get the next result
        $data['members'][] = array(
            'id' => $member["_id"]->__toString(),
            'name' => $member['name'],
            'address' => $member['address'],
            'phone' => $member['phone'],
            'date' => $member['date']
        );
    }
    $this->load->view('welcome', $data);
}