Question

我对我的Facebook应用程序的签名请求书有异议。第一次是好的,我知道用户是否喜欢我的应用程序。但当我重新加载应用程序(链接、表格等)时,我解开了签名请求书(只有刷新 [F5],与工作不同 ) 。

我真不明白为什么?

links 不再工作 : (

This is my test page : https://www.facebook.com/pages/TestCactOos/255835411190164
And the test app : https://www.facebook.com/pages/TestCactOos/255835411190164?sk=app_335457189856398

在应用程序上,您可以看到 $facebook,$_REQUEST 和$_SERVER 信息。

感谢大家的时间和帮助。

Answer 1

签名请求在 Facebook 转介信头中。它不是从链接到链接的保存, 因为随后的转介将会来自您自己的页面。使用签名请求获取一些信息, 并在您之间的会话中保留此信息。

Answer 2

You are just one time able to get the signed_request. That is exactly when Facebook loads your App in an iframe. Then you must have to save the signed_request for further usage (subpages). There you have to check for the data via $_REQUEST or fall back to your stored signed_request values. Here is an small example of the fbHelper component. I hope this might give you some ideas how to handle the issue:

资料来源:http://www.facebook.com/HelperComponentlcomunity/ap_41292314202609' rel=“nofollow”>http://www.facebook.com/HelperComponentlCommunity/ap_41292314202609。

    if(array_key_exists( signed_request , $_REQUEST))
        $signed_request = $_REQUEST[ signed_request ];
    elseif(array_key_exists( signed_request  . $this->pageId, $_SESSION))
        $signed_request = $_SESSION[ signed_request  . $this->pageId];
    else
        return false;

    $facebook_data= $this->parse_signed_request($signed_request);

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