Fixes #3091: Fixed inconsistent treatment of `Widget::run()` when a widget is…

framework/CHANGELOG.md

@@ -4,6 +4,7 @@ Yii Framework 2 Change Log
 2.0.0-rc under development
 --------------------------
 
+- Bug #3091: Fixed inconsistent treatment of `Widget::run()` when a widget is used as a container and as a self-contained object (qiangxue)
 - no changes in this release.
 
 

framework/base/Widget.php

@@ -70,8 +70,7 @@ class Widget extends Component implements ViewContextInterface
         if (!empty(self::$stack)) {
             $widget = array_pop(self::$stack);
             if (get_class($widget) === get_called_class()) {
-                $widget->run();
-
+                echo $widget->run();
                 return $widget;
             } else {
                 throw new InvalidCallException("Expecting end() of " . get_class($widget) . ", found " . get_called_class());