java.lang .String cannot be converted into JSONObject

[Kruthika Srinivasan]

Hi i used this tutorial to insert data in my online server .it works fine but i am unable to get json response.
It is showing" Error parsing data org.json.JSONException: Value success of type java.lang.String cannot be converted to JSONObject"
I am completely new to PHP and Json. please help

my insert.php is

 <?php
$response = array();
$connect = mysqli_connect(" "," "," "," ");

if(mysqli_connect_errno($connect))
{
    echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
else
{
    echo "success";
}

$Make = isset($_POST['Make']) ? $_POST['Make'] : '';
$Model = isset($_POST['Model']) ? $_POST['Model'] : '';

 $RegNo=isset($_POST['RegNo']) ? $_POST['RegNo'] : '';
$Engine=isset($_POST['Engine']) ? $_POST['Engine']: '';
$Chasis=isset($_POST['Chasis']) ? $_POST['Chasis']: '';
$query = mysqli_query($connect, "insert into car (Make, Model,RegNo,Engine,Chasis) values ('$Make' ,'$Model','$RegNo','$Engine','$Chasis') ");
//$query = mysqli_query($connect, "insert into car (Make, Model,RegNo,Engine,Chasis) values ('Maruthi' ,'Ma22','434','42343','32423') ");
  // check if row inserted or not
    if ($query) {
        // successfully inserted into database
        $response["success"] = 1;
        $response["message"] = "Product successfully created.";

        // echoing JSON response
        echo json_encode($response);
    } else {
        // failed to insert row
        $response["success"] = 0;
        $response["message"] = "Oops! An error occurred.";

        // echoing JSON response
        echo json_encode($response);
    }


 mysqli_close($connect);
?>

and my CustomHttpClient.java

public class CustomHttpClient {

		 
	    static InputStream is = null;
	    static JSONObject jObj=null;
	    static String json = "";
	 
	    // constructor
	    public CustomHttpClient() {
	 
	    }
	 
	    // function get json from url
	    // by making HTTP POST or GET mehtod
	    public static JSONObject makeHttpRequest(String url,String method, List<NameValuePair> params) {
	 
	        // Making HTTP request
	        try {
	 
	            // check for request method
	            if(method.equalsIgnoreCase("POST")){
	                // request method is POST
	                // defaultHttpClient
	                DefaultHttpClient httpClient = new DefaultHttpClient();
	                HttpPost httpPost = new HttpPost(url);
	                httpPost.setEntity(new UrlEncodedFormEntity(params));
	 
	                HttpResponse httpResponse = httpClient.execute(httpPost);
	                HttpEntity httpEntity = httpResponse.getEntity();
	                is = httpEntity.getContent();
	 
	            }else if(method.equalsIgnoreCase("GET") ){
	                // request method is GET
	                DefaultHttpClient httpClient = new DefaultHttpClient();
	                String paramString = URLEncodedUtils.format(params, "utf-8");
	                url += "?" + paramString;
	                HttpGet httpGet = new HttpGet(url);
	 
	                HttpResponse httpResponse = httpClient.execute(httpGet);
	                HttpEntity httpEntity = httpResponse.getEntity();
	                is = httpEntity.getContent();
	            }           
	 
	        } catch (UnsupportedEncodingException e) {
	            e.printStackTrace();
	        } catch (ClientProtocolException e) {
	            e.printStackTrace();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	 
	        try {
	            BufferedReader reader = new BufferedReader(new InputStreamReader(
	                    is, "iso-8859-1"), 8);
	            StringBuilder sb = new StringBuilder();
	            String line = null;
	            while ((line = reader.readLine()) != null) {
	                sb.append(line + "\n");
	            }
	            is.close();
	            json = sb.toString();
	        } catch (Exception e) {
	            Log.e("Buffer Error", "Error converting result " + e.toString());
	        }
	 
	        // try parse the string to a JSON object
	        try {
	            jObj = new JSONObject(json);
	        } catch (JSONException e) {
	            Log.e("JSON Parser", "Error parsing data " + e.toString());
	        }
	 
	        // return JSON String
	        return jObj;
	 
	    }
	}

[Ulf Dittmer]

Print out the value of the JSON you're receiving so you know what you're dealing with.

I bet the problem is lines 5 to 12 of your PHP code - you're returning something that is not JSON.

And you shouldn't be doing a DB query if the code can't even connect to the DB.