Android MySQL ภาษาไทย มีปัญหากับการส่งค่าแบบ HttpPost จาก android ไป PHP เป็นภาษาไทย เรียนเชิญด้านในครับ

<?
header("content-type:text/javascript;charset=utf-8");
$objConnect = mysql_connect("localhost","******","*****");
$objDB = mysql_select_db("******");
mysql_query("SET NAMES UTF-8");

$Product = $_POST["Product"];
$Text = $_POST["Text"];
$From = $_POST["From"];
$To = $_POST["To"];
$Time = date("Y-m-d H:i:s");

  
  $sql = "INSERT INTO `*******`.`Board` (`From`, `To`, `Text`, `Product`, `Time`) VALUES ('".$From."', '".$To."', '".$Text."', '".$Product."', '".$Time."');"; 
  $result = mysql_query($sql);
  if(!$result){
	  $arr['StatusID']="0";
	  $arr['Error'] = "Cannot save data";
  }else{
	  $arr['StatusID']="1";
	  $arr['Error']="";
  }
  mysql_close($objConnect);
  echo json_encode($arr);
?>

httpPost.setEntity(new UrlEncodedFormEntity(params,"UTF-8")); 

httpPost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));

public void makeHTTPCall() {
        prgDialog.setMessage("Invoking Php");
        AsyncHttpClient client = new AsyncHttpClient();
        // Don't forget to change the IP address to your LAN address. Port no as well.
        client.post("http://192.168.1.5/upload/upload_image.php",
                params, new AsyncHttpResponseHandler() {
                    // When the response returned by REST has Http
                    // response code '200'
                    @Override
                    public void onSuccess(String response) {
                        // Hide Progress Dialog
                        prgDialog.hide();
                        Toast.makeText(getApplicationContext(), response,
                                Toast.LENGTH_LONG).show();
                    }

                    // When the response returned by REST has Http
                    // response code other than '200' such as '404',
                    // '500' or '403' etc
                    @Override
                    public void onFailure(int statusCode, Throwable error,
                                          String content) {
                        // Hide Progress Dialog
                        prgDialog.hide();
                        // When Http response code is '404'
                        if (statusCode == 404) {
                            Toast.makeText(getApplicationContext(),
                                    "Requested resource not found",
                                    Toast.LENGTH_LONG).show();
                        }
                        // When Http response code is '500'
                        else if (statusCode == 500) {
                            Toast.makeText(getApplicationContext(),
                                    "Something went wrong at server end",
                                    Toast.LENGTH_LONG).show();
                        }
                        // When Http response code other than 404, 500
                        else {
                            Toast.makeText(
                                    getApplicationContext(),
                                    "Error Occured \n Most Common Error: \n1. Device not connected to Internet\n2. Web App is not deployed in App server\n3. App server is not running\n HTTP Status code : "
                                            + statusCode, Toast.LENGTH_LONG)
                                    .show();
                        }
                    }
                });
    }