Kenapa saat ada input tidak mau menampilkan databasenya

 public function bphtb_online(){
        $is_ajax = $this->input->post('is_ajax');
        $data = array(
            'show_menu'=>FALSE,
            'menu'=> $this->menu,
            'title'=> "BPHTB Online",
        );
        $view = $this->load->view('home/bphtb_online', $data, true);
        if($is_ajax){
            $return = array(
                'data'=> $view
            );
            echo json_encode($return);die();
        }else{
            $this->index($view);
        }
    }

    public function bphtb_login(){
        $is_ajax = $this->input->post('is_ajax');
        $data = array(
            'show_menu'=>FALSE,
            'menu'=> $this->menu,
            'title'=> "BPHTB Online",
        );
        $view = $this->load->view('home/bphtb_status', null, true);
        if ($is_ajax) {
            $return = array(
                'data' => $view
            );
            echo json_encode($return);die();
        }
        else {
            $this->index($view);
        }
    }