fix swoft yii

classes/fpf/yiiswoft/Functions.php

@@ -3,9 +3,9 @@ class response
 {
     public function withHeaders($header_arr)
     {
-        \Yii::$app->response->format = Response::FORMAT_RAW;
+        \Yii::$app->response->format = yii\web\Response::FORMAT_RAW;
         foreach ($header_arr as $key => $val) {
-            \Yii::$app->response->headers->add($key, $value);
+            \Yii::$app->response->headers->add($key, $val);
         }
         return $this;
     }
@@ -14,6 +14,7 @@ class response
         return $content;
     }
 }
+
 function response()
 {
     return new response();