function.php

 public function StoreListInfo($list_name,$list_title)
{
    $stmt = $this->conn->prepare("INSERT INTO ibeSaveList(list_name,list_title) VALUES(?,?)");
    $stmt->bind_param("ss", $list_name, $list_title);
    $result = $stmt->execute();
    $stmt->close();

    if($result)
    {
        $stmt = $this->conn->prepare("SELECT list_name,list_title FROM ibeSaveList WHERE list_title = ?");
        $stmt->bind_param("s",$list_title);
        $stmt->execute();
        $stmt->bind_result($token2,$token3);
        while( $stmt->fetch() )
        {
            $user["list_name"]=$token2;
            $user["list_title"]=$token3;
        }
        $stmt->close();
        return $user;
    }
    else
    {
        return false;
    }
}

WebService.php
<?php
require_once 'update_user_info.php';
 $db = new update_user_info();
// json response array
$response = array("error" => FALSE);
var_dump($_POST);
if (isset($_POST['list_name']) && isset($_POST['list_title'])) {

 // receiving the post params
 $list_name = $_POST['list_name'];
 $list_title = $_POST['list_title'];

    // create a new user
    $user = $db->StoreListInfo($list_name,$list_title);
    if ($user) {
        // user stored successfully
        $response["error"] = FALSE;
        $response["user"]["list_name"] = $user["list_name"];
        $response["user"]["list_title"] = $user["list_title"];
        echo json_encode($response);
    } else {
        // user failed to store
        $response["error"] = TRUE;
        $response["error_msg"] = "Unknown error occurred in registration!";
        echo json_encode($response);
    }

 } else {
$response["error"] = TRUE;
$response["error_msg"] = "Required parameters (listname,listtitle) is missing!";
echo json_encode($response);
 }

 ?>

list.java

    private void createListUser(final String list_name, final String list_title) {
    // Tag used to cancel the request
      String cancel_req_tag = "createlist";

    progressDialog.setMessage("Adding you ...");
    showDialog();

    StringRequest strReq = new StringRequest(Request.Method.POST,
            URL_FOR_LIST, new Response.Listener<String>() {

        @Override
        public void onResponse(String response) {
            Log.d(TAG, "CreateList Response: " + response.toString());
            hideDialog();

            try {
                JSONObject jObj = new JSONObject(response);
                boolean error = jObj.getBoolean("error");
                // boolean status= jObj.getBoolean("status");

                if (!error) {
                    Intent intent = new Intent(getActivity(),
                            EventDetailActivity.class);
                    startActivity(intent);

                } else {

                    String errorMsg = jObj.getString("error_msg");
                    Toast.makeText(getApplicationContext(),
                            errorMsg, Toast.LENGTH_LONG).show();
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }

        }
    }, new Response.ErrorListener() {

        @Override
        public void onErrorResponse(VolleyError error) {
            Log.e(TAG, "List Error: " + error.getMessage());
            Toast.makeText(getApplicationContext(),
                    error.getMessage(), Toast.LENGTH_LONG).show();
            hideDialog();
        }
    }) {
        @Override
        protected Map<String, String> getParams() {
            // Posting params to register url
            Map<String, String> params = new HashMap<String, String>();
            params.put("list_name", list_name);
            params.put("list_title", list_title);
            return params;
        }
    };
    // Adding request to request queue
    AppSingleton.getInstance(getApplicationContext()).addToRequestQueue(strReq, cancel_req_tag);
}

array(2) {
    ["list_name"] =>
    string(4) "test"
    ["list_title"] =>
    string(4) "test"
}
{"error":false,"user":{"list_name":"test","list_title":"test"}}

array(2) {
    ["list_name"] =>
    string(4) "test"
    ["list_title"] =>
    string(4) "test"
}

header('Content-Type: application/json');