php – 使用捆绑信息找不到或没有找到证书颁发机构

我开始使用facebook API了.
我从facebook下载了示例代码,配置了我的appID和密钥.

<?PHP
   require '../src/facebook.PHP';

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

// Get User ID
$user = $facebook->getUser();

if ($user) {
  try {
    // Proceed kNowing you have a logged in user who's authenticated.
    $user_profile = $facebook->api('/me');
  } catch (FacebookApiException $E) {
    error_log($E);
    $user = null;
  }
}

// Login or logout url will be needed depending on current user state.
if ($user) {
  $logoutUrl = $facebook->getlogoutUrl();
} else {
  $loginUrl = $facebook->getLoginUrl();
}

// This call will always work since we are fetching public data.
$naitik = $facebook->api('/naitik');

?>

在localhost上,脚本工作没有错误.但在主机上我收到以下错误：

.crt文件上传成功

有人可能会指出我的错误吗？
提前致谢.

Facebook::$CURL_OPTS[CURLOPT_CAINFO] = getcwd().'/fb_ca_chain_bundle.crt';

curl_setopt($ch,CURLOPT_CAINFO,dirname(__FILE__) . '/fb_ca_chain_bundle.crt');