Merge pull request #20 from ddietz-xqueue/patch-2

fix: avoid usage of undefined variable

Author: mbeckerle-xqueue

src/json/JSONSerializer.php

@@ -35,6 +35,8 @@ private static function toArray($object)
         $type = gettype($object);
 
         if ($type == 'array') {
+            $result = array();
+            
             foreach ($object as $element) {
                 // call this method on each object in the array
                 $result[]= self::toArray($element);