diff --git a/php/validator/article-validator.php b/php/validator/article-validator.php
index 2f4c877..669a156 100644
--- a/php/validator/article-validator.php
+++ b/php/validator/article-validator.php
@@ -44,7 +44,8 @@ function articleContentValidator($content)
     }
 
     // Prüft direkt, ob der String valides JSON enthält
-    return json_validate($content);
+    json_decode($content);
+    return json_last_error() === JSON_ERROR_NONE;
 }
 
 /**