如何在不询问用户静态Iframe选项卡应用程序(http://www.facebook.com/iframehost)等权限的情况下,为网页的粉丝和非粉丝显示不同的iframe应用程序?
答案 0 :(得分:2)
查看从所谓的“signed request”获得的Facebook数据。有一个符合您需求的标志(如果用户喜欢该页面,则为true,否则为false)。
答案 1 :(得分:0)
这是签名请求检查的代码:
$signed_request = $_REQUEST['signed_request'];
function parsePageSignedRequest(){
if (isset($_REQUEST['signed_request'])){
$encoded_sig = null;$payload = null;
list($encoded_sig, $payload) = explode('.', $_REQUEST['signed_request'], 2);
$sig = base64_decode(strtr($encoded_sig, '-_', '+/'));
$data = json_decode(base64_decode(strtr($payload, '-_', '+/'), true));
return $data;
}
return false;
}
if($signed_request = parsePageSignedRequest()){
if($signed_request->page->liked) {
// put your "Liked Page Content Here"
} else {
// put your "Alternate" Page Content Here.
}
}