php access以汉语言作为参数进行数据查询时出现乱码

include_once("Conn.php");



$testJSON=array();

$str = trim($_GET['dept']);  



$mysql ="  select *,0 as ord from checkpro where ifstop=0 and dept like '*".$str."*'  ";



echo $mysql; 

 

 $rs = $conn->Execute($mysql);

 while(!$rs->EOF) 

            { 				



	$mydept =iconv('gb2312','utf-8',$rs->Fields['dept']->Value);

	$mypro =iconv('gb2312','utf-8',$rs->Fields['pro']->Value);

	$mynote =iconv('gb2312','utf-8',$rs->Fields['note']->Value);

	$mykf =iconv('gb2312','utf-8',$rs->Fields['kf']->Value);



	echo $mydept;

	

    $testJSON[] = array('dept'=>"".$mydept."","pro"=>"".$mypro."","note"=>"".$mynote."","kf"=>"".$mykf."");   

   	$rs->MoveNext();

      }

  

 foreach ( $testJSON as $key => $value ) { 

 

     foreach ( $testJSON[$key] as $key_k => $value_k ) { 

        $testJSON[$key][$key_k] = urlencode ($value_k);  

	 }

    }  

   echo urldecode ( json_encode ( $testJSON ) );  



         /*释放资源*/

         $rs->Close();

      $conn->Close();

      $rs = null;

      $conn = null;



?>