Question

我正在创建一个Facebook标签页，我想使用粉丝选通。

我之前使用过风扇门控并且没有任何问题，但这就像4个月前一样。我正在使用相同的PHP，但这次我遇到了问题。

请参阅下面我的应用程序的基本代码和扇形门条件声明...

但是由于某种原因我得到了这个错误......

注意：未定义索引：第126行/home/sites/example.co.uk/www/competition/index.php中的signed_request 注意：未定义的偏移量：第128行/home/sites/example.co.uk/www/competition/index.php中的1 像

怪异..

我之前从未遇到过使用过这个问题，facebook改变了它的运作方式吗？

任何帮助都会非常感谢。

<?php

$fb_app_id   = '000000000000000';           
$fb_secret   = '00000000000000000000000000000000';
$fb_app_url  = 'http://example.co.uk/competition';  
$fb_tab_url  = 'http://www.facebook.com/example/app_000000000000000';
$fb_channel  = '//example.co.uk'

require 'src/facebook.php';

//Create facebook application instance.
$facebook = new Facebook(array(
  'appId'  => $fb_app_id,
  'secret' => $fb_secret,
  'cookie' => true,
));

?>

<!DOCTYPE html>
<html>
<head>

    <meta property="fb:app_id" content="<?php echo $fb_app_id ?>" />

</head>

<body>

    <div id="fan-gate">

        <?php

            $signed_request = $_REQUEST["signed_request"];

            list($encoded_sig, $payload) = explode('.', $signed_request, 2);

            $data = json_decode(base64_decode(strtr($payload, '-_', '+/')), true);

            if (empty($data["page"]["liked"])) {

        ?>

            LIKE US...      

        <?php } else { ?>

            <strong>YOU'VE LIKED OUR PAGE, THANKS!!!</strong>

        <?php } ?>

    </div>

    <div id="fb-root"></div>

    <script>

        window.fbAsyncInit = function() {
            FB.init({
                appId: '<?php echo $fb_app_id ?>',
                channelUrl : '<?php echo $fb_channel ?>/channel.html', // Channel File
                cookie: true,
                xfbml: true,
                oauth: true,
                status: true
            });
            FB.Canvas.setAutoGrow(true);
        };

    </script>

</body>
</html>

也尝试了这个，但它总是只说第二个条件，即使我不喜欢这个页面。

<?php

$fb_app_id   = '000000000000000';           
$fb_secret   = '00000000000000000000000000000000';
$fb_app_url  = 'http://example.co.uk/competition';  
$fb_tab_url  = 'http://www.facebook.com/example/app_000000000000000';
$fb_channel  = '//example.co.uk'

require 'src/facebook.php';

//Create facebook application instance.
$facebook = new Facebook(array(
  'appId'  => $fb_app_id,
  'secret' => $fb_secret,
  'cookie' => true,
));

?>

<!DOCTYPE html>
<html>
<head>

    <meta property="fb:app_id" content="<?php echo $fb_app_id ?>" />

</head>

<body>

    <div id="fan-gate">

        <?php

        $signed_request = $facebook->getSignedRequest();

        $like_status = $signed_request["page"]["liked"];

        if($like_status){

            echo 'LIKE US...';

        } else {

            echo '<strong>YOU'VE LIKED OUR PAGE, THANKS!!!</strong>';

        }

    ?>

    </div>

    <div id="fb-root"></div>

    <script>

        window.fbAsyncInit = function() {
            FB.init({
                appId: '<?php echo $fb_app_id ?>',
                channelUrl : '<?php echo $fb_channel ?>/channel.html', // Channel File
                cookie: true,
                xfbml: true,
                oauth: true,
                status: true
            });
            FB.Canvas.setAutoGrow(true);
        };

    </script>

</body>
</html>

Answer 1

signed_request可能丢失的唯一原因是因为重定向。确保您的应用没有重新加载或将iframe重定向到您网站上的其他网页。 signed_request仅在初始页面上可用，除非您在页面之间手动传递它。

Answer 2

我设法让扇子以这种方式工作。

看起来很简单，效果也很好。

此外，我还要对页面管理员进行处理，例如＆＃39;喜欢＆＃39;风扇...

<?php

$fb_app_id   = '000000000000000';           
$fb_secret   = '00000000000000000000000000000000';
$fb_app_url  = 'http://example.co.uk/competition';  
$fb_tab_url  = 'http://www.facebook.com/example/app_000000000000000';
$fb_channel  = '//example.co.uk'

require 'src/facebook.php';

//Create facebook application instance.
$facebook = new Facebook(array(
  'appId'  => $fb_app_id,
  'secret' => $fb_secret,
  'cookie' => true,
));

$signedRequest = $facebook->getSignedRequest();

?>

<!DOCTYPE html>
<html>
<head>

    <meta property="fb:app_id" content="<?php echo $fb_app_id ?>" />

</head>

<body>

    <div id="fan-gate">

        <?php if ( ( $signedRequest['page']['liked'] || $signedRequest['page']['admin'] ) == 1 ) { ?>

            Like us...

        <?php } else { ?>

            <strong>You've Liked our page</strong>

        <?php } ?>

    </div>

    <div id="fb-root"></div>

    <script>

        window.fbAsyncInit = function() {
            FB.init({
                appId: '<?php echo $fb_app_id ?>',
                channelUrl : '<?php echo $fb_channel ?>/channel.html', // Channel File
                cookie: true,
                xfbml: true,
                oauth: true,
                status: true
            });
            FB.Canvas.setAutoGrow(true);
        };

    </script>

</body>
</html>

Facebook签名请求/ fangate不工作。未定义的索引/偏移错误

2 个答案: