我正在尝试查看已授予权限的用户是否喜欢指定的 FB 页面。问题是,它总是返回 true,即使页面没有被喜欢。这是代码:
public function verifyFbLike($userId, $objectId)
{
$appID = 'XXX';
$clientSecret = 'XXX';
$url = 'https://graph.facebook.com/oauth/access_token?client_id=' . $appID . '&client_secret=' . $clientSecret . '&grant_type=client_credentials';
$accessToken = file_get_contents($url);
$accessToken = str_replace('access_token=', '', $accessToken);
$query = urlencode('SELECT user_id FROM like WHERE object_id="' . $objectId . '"');
$xml = file_get_contents('https://api.facebook.com/method/fql.query?query=' . $query . '&access_token=' . $accessToken);
$xmlObj = new SimpleXMLElement($xml);
// See if user did like the object or not
if($xmlObj->attributes()->list == 'true')
return TRUE;
else
return FALSE;
}