Put back Yii::getObjectVars() and fixed infinite loop in Object::toArray().

framework/yii/YiiBase.php

@@ -624,6 +624,19 @@ class YiiBase
 			$object->$name = $value;
 		}
 	}
+
+	/**
+	 * Returns the public member variables of an object.
+	 * This method is provided such that we can get the public member variables of an object.
+	 * It is different from "get_object_vars()" because the latter will return private
+	 * and protected variables if it is called within the object itself.
+	 * @param object $object the object to be handled
+	 * @return array the public member variables of the object
+	 */
+	public static function getObjectVars($object)
+	{
+		return get_object_vars($object);
+	}
 }
 
 YiiBase::$aliases = array(

framework/yii/base/Object.php

@@ -8,7 +8,6 @@
 namespace yii\base;
 
 use Yii;
-use yii\helpers\ArrayHelper;
 
 /**
  * @include @yii/base/Object.md
@@ -223,11 +222,10 @@ class Object implements Arrayable
 	/**
 	 * Converts the object into an array.
 	 * The default implementation will return all public property values as an array.
-	 * However, if the object is traversable, it will return the data obtained by the data iteration.
 	 * @return array the array representation of the object
 	 */
 	public function toArray()
 	{
-		return ArrayHelper::toArray($this, false);
+		return Yii::getObjectVars($this);
 	}
 }