How to Show Content only at your facebook page’s fans

Description:

This is not a full wordpress oriented post, but as you probably know FBLM is deprecated, so according to facebook dev guide, and Bigthink.it i’ll try to show you how to show a “secret” content only at your facebook page’s fans.

You must use a php language to do this, but remember you can user your favorite language to show content.

The Code:

Setup New Facebook Application:

Create new application Following this link
Follow the 2 step creation
Go to website and in “Site Url” field insert your website url (and remember the final slash ex- http://www.wpcode.net/)

Clicks on “Facebook Integration” and fill the “Canvas URL” field with the same url (remember the final slash)

In the Tab Space fill the “Tab Name Field” and “Tab Url” field

Then Click on “Save Changes”
In the Riepilogative Window click on “Application Profile Page”

Choose your page, then click on the Right “Add To Page”.

Go to choosen page/s and Clicks on “Edit”
In the “Default Landing Tab” choose your added Tab

Setup the tab to show coupon at your fans only:

Download Facebook.php
Create a php file with the name you set into the “Tab URL” in my case “wpc_tab.php” and upload in in the position setted in the application
Upload in the same position the “Facebook.php” file downloaded
Add to your new file the following code

<!--p  require 'facebook.php'; $facebook = new Facebook(array( 'appId'--> 'APP ID HERE',
'secret' => 'SECRET KEY HERE',
'cookie' => true,
));

$facebook = new Facebook(array('appId' => $app_id, 'secret' => $app_secret, 'cookie' => true, ));

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, '-_', '+/'));
$signed_request = json_decode(base64_decode(strtr($payload, '-_', '+/'), true),true);
}else {echo "ERROR";}

if ($signed_request['page']['liked']) {
// Facebook fan Content
} else {
// Non facebook fan Content
}
?>

See the Live Demo

Have you a Fan page with reserved content? Let me know with a comment

francesco - April 25th, 2011 at 19:00

I don’t know php but I replaced “…’appId’–> ‘APP ID HERE’ …” with “…’appId’=> ‘APP ID HERE’ …” because I got an error message.
Anyway, it seems still not working, cause I don’t get anything

http://www.facebook.com/Volia1euro?sk=app_182706635113910

Pigi - April 25th, 2011 at 21:22

Where you replace that code? You must add only your app id not entire url

- francesco - April 25th, 2011 at 22:13
  
  I only replaced the ‘–>’ with ‘=>’ and then of course i put the app id and the secret key
  
  - Pigi - April 26th, 2011 at 08:21
    
    When i try the code it works, but maybe something change in the Facebook code, let me see if that code works on my pages

Alessandro - May 10th, 2011 at 22:52

I followed the guide but I did not get a positive result. Seems to work. To you working?

Pigi - May 10th, 2011 at 23:54

Did you followed tutorial step by step? Before publishing i testo what i share and i haven’t any kind of problem! However tomorrow i’ll test the code again

Alessandro - May 11th, 2011 at 14:12

I inserted the code in file.php segunte but the result is a blank page. Am I wrong?

‘mynumber’,
‘secret’ => ‘mynumber’,
‘cookie’ => true,
));

$facebook = new Facebook(array(‘appId’ => $app_id, ‘secret’ => $app_secret, ‘cookie’ => true, ));

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, ‘-_’, ‘+/’));
$signed_request = json_decode(base64_decode(strtr($payload, ‘-_’, ‘+/’), true),true);
}else {echo “ERROR”;}

if ($signed_request['page']['liked']) {

Testo di Prova

} else {
// Non facebook fan Content
}
?>