Merge pull request #2941 from acs-ferreira/patch-34

Fix BaseStack widget

protected/humhub/widgets/BaseStack.php

@@ -2,13 +2,14 @@
 
 /**
  * @link https://www.humhub.org/
- * @copyright Copyright (c) 2017 HumHub GmbH & Co. KG
+ * @copyright Copyright (c) 2018 HumHub GmbH & Co. KG
  * @license https://www.humhub.com/licences
  */
 
 namespace humhub\widgets;
 
 use Yii;
+use yii\base\Widget;
 
 /**
  * StackWidget is a widget which can hold a set of subwidgets.
@@ -36,14 +37,14 @@ class BaseStack extends \yii\base\Widget
      *
      * @var array
      */
-    public $widgets = array();
+    public $widgets = [];
 
     /**
      * Seperator HTML Code (glue)
      *
      * @var string
      */
-    public $seperator = "";
+    public $seperator = '';
 
     /**
      * Template for output
@@ -51,14 +52,13 @@ class BaseStack extends \yii\base\Widget
      *
      * @var string
      */
-    public $template = "{content}";
+    public $template = '{content}';
 
     /**
      * Initializes the sidebar widget.
      */
     public function init()
     {
-
         // Yii 2.0.11 introduced own init event
         if (version_compare(Yii::getVersion(), '2.0.11', '<')) {
             $this->trigger(self::EVENT_INIT);
@@ -74,7 +74,7 @@ class BaseStack extends \yii\base\Widget
     {
         $this->trigger(self::EVENT_RUN);
 
-        $content = "";
+        $content = '';
 
         $i = 0;
         foreach ($this->getWidgets() as $widget) {
@@ -123,7 +123,7 @@ class BaseStack extends \yii\base\Widget
 
             if ($sortA == $sortB) {
                 return 0;
-            } else if ($sortA < $sortB) {
+            } elseif ($sortA < $sortB) {
                 return -1;
             } else {
                 return 1;