function user_select_all()
{
# code...
$this->db->select('*');
$query = $this->db->get('users');
return $query->result();
}
function user_select_limit($start,$end)
{
# code...
$this->db->select('*');
$this->db->limit($end,$start);
$this->db->get('users');
return $query->result();
}