if (!defined('HAD_INSTALL') )  define('HAD_INSTALL', '1');<br />
<b>Fatal error</b>:  Call to a member function num_rows() on a non-object in <b>E:\webhostroot\jrcjuhepingtai\wwwroot\shandongzscom\application\modules\main\models\main_model.php</b> on line <b>170</b><br />