登录后如何从facebook api用户收到用户的电子邮件

Question

我在使用facebook api从用户登录后从Facebook检索用户电子邮件地址时遇到问题，我在stackoverflow上查看过很多与此相关的帖子，但仍无法解决我的问题

查看链接

https://stackoverflow.com/questions/17828849/i-cant-get-user-email-address-on-facebook

I cant get user email address on facebook

这是我的代码

require 'facebook.php';

 $facebook = new Facebook(array(
  'appId'  => $client_id,
  'secret' => $client_secret,
));

    // Get User ID
    $user = $facebook->getUser();

    if ($user) {
      try {
        // Get the user profile data you have permission to view
        $user_profile = $facebook->api('/me');

        echo "<pre>";
        print_r($user_profile);
        echo "</pre>";

      } catch (FacebookApiException $e) {
        $user = null;
      }
    } else {
      die('<script>top.location.href="'.$facebook->getLoginUrl().'";</script>');
    }

        $loginUrl = $facebook->getLoginUrl(array(
        'scope'         => 'email, read_stream, publish_stream, user_birthday, user_location, user_work_history, user_hometown, user_photos'
        ));

    echo $user_profile['email'];

任何帮助将不胜感激。感谢

除了电子邮件地址

之外，还显示我需要的其他信息