如何檢查用戶是否喜歡facebook應用程序？

Question

我們如何檢查用戶是否喜歡facebook應用程序？

我想創建一個Facebook應用程序，它有兩個不同的頁面，如果用戶喜歡，那麼page_1將顯示，否則page_2顯示。

Answer 1

<?php 
$user = $facebook->getUser(); 
if ($user) { 

try{ 
$user_profile = $facebook->api('/me'); 
$likeID = $facebook->api(array('method' => 'fql.query', 
'query' => 'SELECT url FROM url_like WHERE user_id = "'.$user_profile['id'].'" AND url="myurl/"';)); 
} 
catch(FacebookApiException $e) { } 
} 
if(count($likeID)>0) echo "User likes this page"; 
else echo "User doesn\'t like this page"; 

?> 

可信的和/或官方來源：

1. http://www.zuberi.me/2011/how-to-check-if-user-liked-the-application-or-page.html
2. http://www.chilipepperdesign.com/2011/02/15/reveal-fan-gate-like-gate-facebook-iframe-tab-tutorial-with-php
3. How to check if a user likes my Facebook Page or URL using Facebook's API
4. Facebook how to check if user has liked page and show content?
5. Facebook Check if user "Liked" the page

Answer 2

require 'facebook.php'; 

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

$signed_request = $facebook->getSignedRequest(); 


$like_status = $signed_request["app"]["liked"]; 


if ($like_status == 1){ 
echo 'User likes this page'; 
} 
else{ 
echo 'User doesn\'t like this page'; 
} 

也許你應該嘗試這樣的事情，檢查Facebook's PHP SDK reference page的確切方法。

Answer 3

對這一問題的更好的方法可以是：<？PHP的 $用戶= $ facebook->

// to generate user access token after the user is logged in 
$USER_ACCESS_TOKEN = $facebook->getExtendedAccessToken(); 

$isFan = curl("https://api.facebook.com/method/pages.isFan?format=json&access_token=" . $USER_ACCESS_TOKEN . "&page_id=" . $FACEBOOK_PAGE_ID); 

     function curl($url) { 

      $ch = curl_init(); 
      curl_setopt($ch, CURLOPT_URL, $url); 
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
      curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); 
      $data = curl_exec($ch); 
      curl_close($ch); 
      return $data; 
     }