php - 如何在 Doctrine 中编码 JSON 数组？

Question

如何在 Doctrine 中将数组转换为 JSON？

到目前为止我已经试过了。这是我的代码:

require_once ("../Users.php");
require_once("../../test/doctrine/cli-config.php");
require_once "../../test/doctrine/bootstrap.php";

            $user_list = array();

            $usersRepository = $entityManager->getRepository('Users');

            $users = $usersRepository->findAll();  

            echo "<pre>";
            print_r($users);

            foreach ($users as $user) 
            {
                $user_list[] = array('user_list'=>$user);   
            }


  json_encode($user_list)

print_r() 部分返回给我:

Array
(
    [0] => Users Object
        (
            [id:Users:private] => 1
            [lastName:Users:private] => User1
            [firstName:Users:private] => Test1
            [city:Users:private] => ABC
            [country:Users:private] => XYZ
            [email:Users:private] => user1@yahoo.com
        )

    [1] => Users Object
        (
            [id:Users:private] => 2
            [lastName:Users:private] => User2
            [firstName:Users:private] => Test1
            [city:Users:private] => ABC
            [country:Users:private] => XYZ
            [email:Users:private] => user2@yahoo.com
        )

)
[{"user_list":{}},{"user_list":{}}]

请参阅 Json 响应为空。谁能帮我解决这个问题？

Answer 1

您的实体中没有公共(public)属性...这就是您得到空 json 的原因。

我正在为此目的使用 EntitySerializer

您的案例的用法应该是:

$eSerializer = new Bgy\Doctrine\EntitySerializer($entityManager);
$result = $eSerializer->toArray($users);

但这只是个人喜好。您可以并且应该使用标准 Serializer class of Symfony framework