diff --git a/php/model/ArticleManagerDAO.php b/php/model/ArticleManagerDAO.php
index 6209b25..95b04cc 100644
--- a/php/model/ArticleManagerDAO.php
+++ b/php/model/ArticleManagerDAO.php
@@ -1,5 +1,5 @@
 <?php
-require "Article.php";
+require_once "Article.php";
 /**
  * Die Klasse beinhaltet alle Methoden für die Operation mit den Artikel-Daten.
  *
@@ -52,7 +52,7 @@ interface ArticleManagerDAO
      * Mögliche Exceptions:
      * TODO Fehlerbeschreibung hinzufügen
      */
-    public function getArticle($id): Article;
+    public function getArticle($id);
 
     /**
      * Alle Beiträge aufrufen.
diff --git a/php/model/LocalArticleManager.php b/php/model/LocalArticleManager.php
index e01e953..8836b72 100644
--- a/php/model/LocalArticleManager.php
+++ b/php/model/LocalArticleManager.php
@@ -72,7 +72,7 @@ class LocalArticleManager implements ArticleManagerDAO {
         // TODO: Implement deleteArticle() method.
     }
 
-    public function getArticle($id): Article
+    public function getArticle($id)
     {
         $articles = $this->getAllArticles();
 
@@ -82,7 +82,7 @@ class LocalArticleManager implements ArticleManagerDAO {
             }
         }
 
-        return new Article(0, "", "", "", "", "", "");
+        return null;
     }
 
     public function getAllArticles(): array