CODEWITHSUNDEEP
facebookiframefacebook-graph-api
user961694
user961694

Reputation:

How to display different iframe app for fans and non-fans?

How can U display different iframe app for fans and non-fans of a page without asking user about permissions like Static Iframe Tab app (http://www.facebook.com/iframehost) is doing?

Upvotes: 1

Views: 505

Answers (2)

lenfontes
lenfontes

Reputation: 53

here's the code for that signed request check: 

$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.
  }
}

Upvotes: 0

Niko
Niko

Reputation: 26730

Take a look at the data you get from facebook in the so called "signed request". There is a flag included that fits your needs (true if the user has liked the page, otherwise false).

Upvotes: 2

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