symfony
diff --git a/‎src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/SerializerPass.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/SerializerPass.php
+6-5Lines changed: 6 additions & 5 deletions b/‎src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/SerializerPass.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/SerializerPass.php
+6-5Lines changed: 6 additions & 5 deletions
@@ -41,20 +41,21 @@ public function process(ContainerBuilder $container)
     private function findAndSortTaggedServices($tag_name, $container)
     {
         // Find tagged services
-        $servs = array();
+        $services = array();
         foreach ($container->findTaggedServiceIds($tag_name) as $serviceId => $tags) {
             foreach($tags as $tag) {
                 $priority = isset($tag['priority']) ? $tag['priority'] : 0;
-                $servs[$priority][] = new Reference($serviceId);
+                $services[$priority][] = new Reference($serviceId);
             }
         }
 
         // Sort them
-        krsort($servs);
+        krsort($services);
 
         // Flatten the array
-        $services = array();
-        array_walk_recursive($servs, function($a) use (&$services) { $services[] = $a; });
+        if(!empty($services)) {
+            $services = call_user_func_array('array_merge', $services);
+        }
 
         return $services;
     }