public function actionModify()
 {
     $data = Yii::$app->request->post();
     $count = User::updateAll(array('nickname' => $data['nickname'], 'thumb' => $data['thumb'], 'gender' => $data['gender'], 'area' => $data['area'], 'job' => $data['job'], 'hobby' => $data['hobby'], 'signature' => $data['signature'], 'updated_at' => time()), 'phone=:ph', array(':ph' => $data['phone']));
     if ($count === 0) {
         echo json_encode(array('flag' => 0, 'msg' => 'Modify failed!'));
     } else {
         echo json_encode(array('flag' => 1, 'msg' => 'Modify success!'));
     }
 }