How to check if current facebook user like a page using PHP SDK?

Question

How can i check if the current facebook user like a facebook page?

I have this code,

require_once(\"/path/to/sdk/facebook.php\");


    // Create our         


        

Answer 1

You can use FQL

$isFan = $facebook->api(array(
  "method" => "fql.query",
  "query"  => "SELECT uid FROM page_fan WHERE page_id = '<YOUR PAGE ID>' AND uid = '<UID>"
));

Answer 2

I don't know if you need to do this only using FQL, but there is another easier way:

require_once("/path/to/sdk/facebook.php");

// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
  'appId' => 'APP_ID',
  'secret' => 'APP_SECRET',
));

$signed_request = $facebook->getSignedRequest();

$like = $signed_request['page']['liked'];

$like will be empty or 1.

I like to check variables first, like this:

if(is_array($signed_request) && isset($signed_request['page']) {
  if($signed_request['page']['liked']) {
    // do whatever you want to do if the user likes the page
  } else {
    // do whatever you want to do if the user don't like the page yet
  }
}