add the user balance

@@ -437,7 +437,7 @@ class UsersController extends HomeBaseController{
     public function getUserBalance(){
         $user_id=input('user_id');
         dump($user_id);
-        $return['fee']=\db('users')->where('id',$user_id)->field('fee');
+        $return['fee']=\db('users')->where('id',$user_id)->value('fee');
         dump($return);
         return $return;
     }