Вроде как бы сделан вывод объектного ofetch().

classes/Battles/Database/DBPDO.php

@@ -133,9 +133,9 @@ class DBPDO
         // Allows the user to retrieve results using a
         // column from the results as a key for the array
         if ($key != null && $results[0][$key]) {
-            $keyed_results = array();
+            $keyed_results = (object) array();
             foreach ($results as $result) {
-                $keyed_results[$result[$key]] = $result;
+                $keyed_results->$result[$key] = $result;
             }
             $results = $keyed_results;
         }