Login With Facebook SDK PHP - User Must Click Logi

2019-08-15 10:31发布

站内问答 / PHP
668 1 5

I am trying use the PHP Facebook SDK to log users in with facebook.

I have started off by using the example file provided in the .zip I downloaded from GitHub.

When users click login they are taken to the authentication page. After the allow my app they are redirected back to the original page where it should print_r the user object. But it does not. Clicking login again skips the authentication page (as the user has already allowed the app) and then the object is printed.

Anyhelp would be appreciated.

<?php 
/**
 * Copyright 2011 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License. You may obtain
 * a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

require '../src/facebook.php';

// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
  'appId'  => '1111111111',
  'secret' => 'xxxxxxxxxxxxxxxxxxxxxxx'
));


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

// We may or may not have this data based on whether the user is logged in.
//
// If we have a $user id here, it means we know the user is logged into
// Facebook, but we don't know if the access token is valid. An access
// token is invalid if the user logged out of Facebook.

if ($user) {
  echo '1 <br>';
  try {
    // Proceed knowing you have a logged in user who's authenticated.
    echo '2 <br>';
    $user_profile = $facebook->api('/me');
  } catch (FacebookApiException $e) {
    echo '3 <br>';
    error_log($e);
    $user = null;
  }
}

// Login or logout url will be needed depending on current user state.
if ($user) {
  echo '4 <br>';
  $logoutUrl = $facebook->getLogoutUrl();
} else {
  echo '5 <br>';
  $loginUrl = $facebook->getLoginUrl(array(
      'scope' => 'email,read_stream,publish_stream',
      'display' => 'touch'
      ));
}

// This call will always work since we are fetching public data.
$naitik = $facebook->api('/naitik');

?>
<!doctype html>
<html xmlns:fb="http://www.facebook.com/2008/fbml">
  <head>
    <title>php-sdk</title>
    <style>
      body {
        font-family: 'Lucida Grande', Verdana, Arial, sans-serif;
      }
      h1 a {
        text-decoration: none;
        color: #3b5998;
      }
      h1 a:hover {
        text-decoration: underline;
      }
    </style>
  </head>
  <body>
    <h1>php-sdk</h1>

    <?php if ($user): ?>
      <a href="<?php echo $logoutUrl; ?>">Logout</a>
    <?php else: ?>
      <div>
        Login using OAuth 2.0 handled by the PHP SDK:
        <a href="<?php echo $loginUrl; ?>">Login with Facebook</a>
      </div>
    <?php endif ?>

    <h3>PHP Session</h3>
    <pre><?php echo '6 <br>'; print_r($_SESSION); ?></pre>

    <?php if ($user): ?>
      <h3>You</h3>
      <img src="https://graph.facebook.com/<?php echo $user; ?>/picture">

      <h3>Your User Object (/me)</h3>
      <pre><?php echo '7 <br>'; print_r($user_profile); ?></pre>
    <?php else: ?>
      <strong><em>You are not Connected.</em></strong>
    <?php endif ?>

    <h3>Public profile of Naitik</h3>
    <img src="https://graph.facebook.com/naitik/picture">
    <?php echo $naitik['name']; ?>
  </body>
</html>

1条回答
放荡不羁爱自由
2楼-- · 2019-08-15 11:01 
    <div id="fb-root"></div>
    <script src="//connect.facebook.net/en_US/all.js"></script>
    <script>
      window.fbAsyncInit = function() {
        // init the FB JS SDK
        FB.init({
          appId      : 'YOUR_APP_ID', // App ID from the App Dashboard
          status     : true, // check the login status upon init?
          cookie     : true, // set sessions cookies to allow your server to access the session?
          xfbml      : true  // parse XFBML tags on this page?
        });

        FB.Event.subscribe('auth.login', function(response) {
        window.location.href=window.location.href;
    }

      };

      // Load the SDK's source Asynchronously
      // Note that the debug version is being actively developed and might 
      // contain some type checks that are overly strict. 
      // Please report such bugs using the bugs tool.
      (function(d, debug){
         var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
         if (d.getElementById(id)) {return;}
         js = d.createElement('script'); js.id = id; js.async = true;
         js.src = "//connect.facebook.net/en_US/all" + (debug ? "/debug" : "") + ".js";
         ref.parentNode.insertBefore(js, ref);
       }(document, /*debug*/ false));
    </script>
查看更多
0人赞 添加讨论(0) 举报
登录 后发表回答
相关问题
查看全部
相关文章
查看全部
收藏的人(5)