diff --git a/examples/user-register.php b/examples/user-register.php
index e185fba..e37fac0 100644
--- a/examples/user-register.php
+++ b/examples/user-register.php
@@ -10,7 +10,7 @@
     $inputDate=[
             "name"      => "kuangweijian",
             "email"     => "12345678@qq.com",
-            "hkPhoneNum"=> "012345678",
+            "hkPhoneNum"=> "",
             "password"  => "1234567890",
             "pwdConfirm"=> "1234567890",
     ];
diff --git a/src/validators/HKPhoneNum.php b/src/validators/HKPhoneNum.php
index 43591bc..8bee23f 100644
--- a/src/validators/HKPhoneNum.php
+++ b/src/validators/HKPhoneNum.php
@@ -28,6 +28,17 @@ use yii\validators\Validator;
             }
         }
 
+        /**
+         * {@inheritdoc}
+         */
+        public function validateAttribute($model, $attribute)
+        {
+            $result = $this->validateValue($model->$attribute);
+            if (!empty($result)) {
+                $this->addError($model, $attribute, $result[0], $result[1]);
+            }
+        }
+
         /**
          * {@inheritdoc}
          */
@@ -42,5 +53,6 @@ use yii\validators\Validator;
             }
             return $valid ? null : [$this->message, []];
         }
+
     }
 ?>
\ No newline at end of file