diff --git a/php/model/LocalArticleManager.php b/php/model/LocalArticleManager.php
index 6df27e9..aab081a 100644
--- a/php/model/LocalArticleManager.php
+++ b/php/model/LocalArticleManager.php
@@ -62,7 +62,8 @@ class LocalArticleManager implements ArticleManagerDAO {
             "author" => $author,
             "category" => $category,
             "tags" => $tags,
-            "creationDate" => date("Y-m-d H:i:s")
+            "creationDate" => date("Y-m-d H:i:s"),
+            "likes" => []
         ];
 
         $this->saveArticle($articles);
@@ -92,7 +93,8 @@ class LocalArticleManager implements ArticleManagerDAO {
                     "author" => $author,
                     "category" => $article->getCategory(),
                     "tags" => $article->getTags(),
-                    "creationDate" => $article->getCreationDate()
+                    "creationDate" => $article->getCreationDate(),
+                    "likes" => $storedArticle['likes'] ?? []
                 ];
                 $updated = true;
                 break;
@@ -142,7 +144,17 @@ class LocalArticleManager implements ArticleManagerDAO {
 
         foreach ($articles as $article) {
             if (isset($article['id']) && $article['id'] == $id) {
-                return new Article(intval($article['id']), $article['title'], $article['content'], $article['author'], $article['category'], $article['tags'], $article['creationDate']);
+                $likes = isset($article['likes']) && is_array($article['likes']) ? $article['likes'] : [];
+                return new Article(
+                    intval($article['id']),
+                    $article['title'],
+                    $article['content'],
+                    $article['author'],
+                    $article['category'],
+                    $article['tags'],
+                    $article['creationDate'],
+                    $likes
+                    );
             }
         }
 
@@ -168,6 +180,7 @@ class LocalArticleManager implements ArticleManagerDAO {
 
         foreach ($articles as $article) {
             if (isset($article['author']) && $article['author'] == $author) {
+                $likes = isset($article['likes']) && is_array($article['likes']) ? $article['likes'] : [];
                 $filteredArticles[] = new Article(
                     intval($article['id']),
                     $article['title'],
@@ -175,7 +188,8 @@ class LocalArticleManager implements ArticleManagerDAO {
                     $article['author'],
                     $article['category'],
                     $article['tags'],
-                    $article['creationDate']
+                    $article['creationDate'],
+                    $likes
                 );
             }
         }
@@ -201,6 +215,7 @@ class LocalArticleManager implements ArticleManagerDAO {
             if (($cleanKeyword !== '' && strpos($title, $cleanKeyword) !== false) ||
                 ($cleanKeyword !== '' && strpos($content, $cleanKeyword) !== false)) {
 
+                $likes = isset($article['likes']) && is_array($article['likes']) ? $article['likes'] : [];
                 $filteredArticles[] = new Article(
                     intval($article['id'] ?? 0),
                     $article['title'] ?? '',
@@ -208,7 +223,8 @@ class LocalArticleManager implements ArticleManagerDAO {
                     $article['author'] ?? '',
                     $article['category'] ?? '',
                     $article['tags'] ?? '',
-                    $article['creationDate'] ?? ''
+                    $article['creationDate'] ?? '',
+                    $likes
                 );
             }
         }
@@ -223,6 +239,7 @@ class LocalArticleManager implements ArticleManagerDAO {
 
         foreach ($articles as $article) {
             if (isset($article['category']) && $article['category'] == $category) {
+                $likes = isset($article['likes']) && is_array($article['likes']) ? $article['likes'] : [];
                 $filteredArticles[] = new Article(
                     intval($article['id']),
                     $article['title'],
@@ -230,12 +247,53 @@ class LocalArticleManager implements ArticleManagerDAO {
                     $article['author'],
                     $article['category'],
                     $article['tags'],
-                    $article['creationDate']
+                    $article['creationDate'],
+                    $likes
                 );
             }
         }
         return $filteredArticles;
     }
 
+    public function toggleLike(int $articleId, string $userId): bool
+    {
+        $articles = $this->getAllArticles();
+        $articleFound = false;
+        $isLikedNow = false;
+
+        foreach ($articles as $index => $article) {
+            if (isset($article['id']) && $article['id'] == $articleId) {
+                $articleFound = true;
+
+                // Likes-Array initialisieren, falls nicht vorhanden
+                if (!isset($articles[$index]['likes']) || !is_array($articles[$index]['likes'])) {
+                    $articles[$index]['likes'] = [];
+                }
+
+                $likeIndex = array_search($userId, $articles[$index]['likes']);
+
+                if ($likeIndex !== false) {
+                    // Bereits geliked -> Unlike
+                    unset($articles[$index]['likes'][$likeIndex]);
+                    // Array-Keys neu indizieren, damit JSON sauber bleibt
+                    $articles[$index]['likes'] = array_values($articles[$index]['likes']);
+                    $isLikedNow = false;
+                } else {
+                    // Noch nicht geliked -> Like (User-ID hinzufügen)
+                    $articles[$index]['likes'][] = $userId;
+                    $isLikedNow = true;
+                }
+                break;
+            }
+        }
+
+        if (!$articleFound) {
+            throw new NotFoundException("missing_id");
+        }
+
+        $this->saveArticle($articles);
+        return $isLikedNow;
+    }
+
 }
 ?>
\ No newline at end of file