} break; case 'delete': $id = $_POST['id']; $res = $bk->del_item($id); if ($res) { $response->res = true; $response->mes = $mes->get_msg("e006"); } else { $response->res = false; $response->mes = $mes->get_msg("e007"); } break; case 'get_bookdata': $id = $_POST['id']; $res = $bk->get_item($id); if ($res) { $response->res = true; $response->id_book = $res[0]["tb_id"]; $response->t = $res[0]["tb_title"]; $response->i = $res[0]["tb_isbn"]; $response->a = $res[0]["tb_autor"]; $response->g = $res[0]["tb_gender"]; $response->r = $res[0]["tb_released"]; $response->mes = null; } else { $response->res = false; $response->mes = $mes->get_msg("e008"); } break; case 'edit':