$this->db->select('*');
                $this->db->from('users');

                $name=$this->input->post('name');
                if(!empty($name)){
                    $this->db->where('name', $name );
                }

                $mobile=$this->input->post('mobile');
                if(!empty($mobile)){
                    $this->db->where('mobile', $mobile );
                }
               
                $query = $this->db->get();

                $result= $query->result();