zendframework 3-标识视图帮助器错误

Question

我尝试在我的layout.phtml中使用身份视图帮助程序

$this->identity();

但是会出现这个错误：

No AuthenticationServiceInterface instance provided in  vendor\zendframework\zend-view\src\Helper\Identity.php on line 38

Answer 1

您是否在您的services of ServiceManager中实际设置并注册了Zend-Authentication

因为IdentityHelper的工厂将设置AuthenticationService。

请参阅：https://github.com/zendframework/zend-mvc-plugin-identity/blob/1.1.0/src/IdentityFactory.php#L27-L31

    if ($container->has(AuthenticationService::class)) {
        $plugin->setAuthenticationService($container->get(AuthenticationService::class));
    } elseif ($container->has(AuthenticationServiceInterface::class)) {
        $plugin->setAuthenticationService($container->get(AuthenticationServiceInterface::class));
    }

在应用程序module.config.php中注册AuthenticationService：

'service_manager' => [
    'factories' => [
        \Zend\Authentication\AuthenticationService::class => \Application\Service\Factory\AuthenticationServiceFactory::class,
    ]
],

为您的AuthenticationService创建一个工厂，在该工厂中告诉服务使用哪个适配器来检查身份是否有效。请参阅https://docs.zendframework.com/zend-authentication/intro/#usage