public function updatePeople()
 {
     $error = '';
     if (!isset($_POST['username'])) {
         $view = new View("updatepeople.php");
         $modeluser = new ModelUser();
         $user = $modeluser->getUserById($_GET['id']);
         $view->set('user', $user);
         $view->output();
         exit;
     }
     $username = $_POST['username'];
     if ($this->checkEmply($username, 'username') != '') {
         $error .= '<div class="alert alert-danger">' . $this->checkEmply($username, 'username') . '</div>';
     }
     $model = new ModelUser();
     if ($model->checkUsernameExits($username) != '') {
         $error .= '<div class="alert alert-danger">' . $model->checkUsernameExits($username, 'username') . '</div>';
     }
     $password = $_POST['password'];
     if ($this->checkEmply($password, 'password') != '') {
         $error .= '<div class="alert alert-danger">' . $this->checkEmply($password, 'password') . '</div>';
     }
     $fullname = $_POST['fullname'];
     if ($this->checkEmply($fullname, 'fullname') != '') {
         $error .= '<div class="alert alert-danger">' . $this->checkEmply($fullname, 'fullname') . '</div>';
     }
     $birthday = $_POST['birthday'];
     if ($this->checkEmply($birthday, 'birthday') != '') {
         $error .= '<div class="alert alert-danger">' . $this->checkEmply($birthday, 'birthday') . '</div>';
     }
     $description = $_POST['description'];
     if ($this->checkEmply($description, 'description') != '') {
         $error .= '<div class="alert alert-danger">' . $this->checkEmply($description, 'description') . '</div>';
     }
     $user = $model->getUserById($_SESSION['user']);
     $target_file = $user->getLinkimage();
     if ($_FILES['avatar']['error'] == 0) {
         $target_dir = "uploads/";
         $target_file = $target_dir . basename($_FILES["avatar"]["name"]);
         $uploadOk = 1;
         $imageFileType = pathinfo($target_file, PATHINFO_EXTENSION);
         // Check if image file is a actual image or fake image
         $check = getimagesize($_FILES["avatar"]["tmp_name"]);
         if ($check !== false) {
             $uploadOk = 1;
         } else {
             $uploadOk = 0;
         }
         if ($uploadOk == 0) {
             $error .= '<div class="alert alert-danger">Sorry, your file was not uploaded.</div>';
         } else {
             if (move_uploaded_file($_FILES["avatar"]["tmp_name"], $target_file)) {
             } else {
                 $error .= '<div class="alert alert-danger">Sorry, there was an error uploading your file.</div>';
             }
         }
     } else {
         $error .= '<div class="alert alert-danger">Please choose image</div>';
     }
     $model = new ModelUser();
     $model->updateUser($_GET['id'], $username, $password, $fullname, string_to_date_mysql($birthday), $description, $target_file);
     $view = new View("updatepeople.php");
     $view->set('error', $error);
     $usernew = new User($username, $password, $fullname, $birthday, $description, $target_file);
     $view->set('user', $usernew);
     $view->output();
 }