php - 从 symfony 2 Controller 操作返回数组

Question

I need to return $items array from 'http://localhost:8000/cart/viewall'
controller action. But all i get is this error.

The Response content must be a string or object implementing __toString(), "array" given.

这是我的代码，

 /**
 * @Route("/cart/viewall")
 * @Template()
 */
public function viewallAction() {
    $items = array(1 => 'item 1', 2 => 'item 2');        
    return new Response($items);
}     

如果有人能提供解决方案，那将是非常有帮助的。

Answer 1

改用 JsonResponse。

示例:

$items = array(1 => 'item 1', 2 => 'item 2');
return new JsonResponse($items);

参见 http://symfony.com/doc/current/components/http_foundation/introduction.html