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我有正确的access_token,但是当我打电话时file_get_contents,我收到以下错误:

[function.file-get-contents]: failed to open stream: HTTP request failed!
HTTP/1.1 400 Bad Request in..

在浏览器中粘贴echo $fql_query_url会得到正确的结果吗?

是编码问题吗?我问是因为其他 fql 查询工作正常。这是有问题的代码:

<?php
require_once('facebook.php');
//GET access token
echo $uid = $facebook->getUser();
 $access_token = $facebook->getAccessToken();
 echo '<br>';

// Run fql query
 $fql_query_url = 'https://graph.facebook.com/'
    . '/fql?q=SELECT page_id from page_admin WHERE uid='.$uid.''
    . '&access_token=' . $access_token;
  $fql_query_result = file_get_contents($fql_query_url);
  $fql_query_obj = json_decode($fql_query_result, true);


  //display results of fql query
  echo '<br><pre>';
  print_r("query results:");
  print_r($fql_query_obj);
  echo '</pre>';
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