設定狀態程式碼
public function someAction(){
    
    // Action's code 
    return new Response($error, 500); 
}
另一個例子:
public function someAction(){
    
    // Action's code 
    $response = new Response(); 
    $response->setStatusCode(500)
    $response->setContent($content); 
    return $response;
}