小编Den*_*W83的帖子

我想为我的Facebook页面写一个fangate,但它没有工作,我没有在互联网上找到任何帮助

require 'facebook.php';

$app_id = '16850872653xxxx';
$app_secret = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';
$facebook = new Facebook(array(
'appId' => $app_id,
'secret' => $app_secret,
'cookie' => true
));

$signed_request = $_REQUEST['signed_request'];

//echo $signed_request;

list($encoded_sig, $payload) = explode('.', $signed_request, 2); 


// decode the data
$sig = base64_url_decode($encoded_sig);
$data = json_decode(base64_url_decode($payload), true);

// check sig
$expected_sig = hash_hmac('sha256', $payload, $app_secret, $raw = true);

function base64_url_decode($input) {
return base64_decode(strtr($input, '-_', '+/'));
}

if($signed_request->page->liked) {
echo "This content is for Fans only!";
} else {
echo "Please click on …