如何使用facebook php sdk 3.0做fql.multiquery

Question

我正在从2.x PHP SDK迁移到3.x. 所有多重调用都被打破，我无法弄清楚如何解决。

使用oauth javascript工作的facebook连接登录工作，并允许当前用户的数据被访问服务器端。 我假设这验证了我的访问令牌是合法的。

我尝试了以下代码变体并且每次都会出错：

旧方式：

        $id = $fb->getUser(); // RETURNS A VALID USER ID
        $fql = '{ "friends" : "SELECT uid FROM user WHERE has_added_app=1 and uid IN (SELECT uid2 FROM friend WHERE uid1 = '.$id.')", "profiles" : "SELECT uid, name, pic_square FROM user WHERE uid IN (SELECT uid FROM #friends)"}';

        $response = $fb->api( array('method' => 'fql.multiquery','queries' => $fql));

给出错误：PHP致命错误：未捕获异常：102：需要用户会话\\ n抛出

假设新方法：

        $id = $fb->getUser(); // RETURNS A VALID USER ID
        $fql = '{ "friends" : "SELECT uid FROM user WHERE has_added_app=1 and uid IN (SELECT uid2 FROM friend WHERE uid1 = '.$id.')", "profiles" : "SELECT uid, name, pic_square FROM user WHERE uid IN (SELECT uid FROM #friends)"}';

        $response = $fb->api( array('method' => 'fql.query','query' => $fql));

给出错误：PHP致命错误：未捕获异常：601：解析器错误：位置0处意外的'{'

任何有助于了解如何使用新的PHP SDK进行多重查询的帮助表示赞赏。

Answer 1

对于您的特定查询，请使用新的 fql Graph API端点，并且只使用一个查询：

$user = $facebook->getUser();
if ($user) {
  try {
    $fql = urlencode("SELECT uid, name, pic_square FROM user WHERE is_app_user = 1 AND uid IN (SELECT uid2 FROM friend WHERE uid1 = $user)");
    $response = $facebook->api("/fql?q={$fql}");
  } catch (FacebookApiException $e) {
    echo '<pre>'.htmlspecialchars(print_r($e, true)).'</pre>';
    $user = null;
  }
}

还可以使用is_app_user而不是已弃用的has_added_app ！

Answer 2

只需将查询作为关联数组传递：

  $common_fields_fql = 'SELECT uid, email, contact_email, first_name, last_name, birthday_date, pic_square, sex, hometown_location, current_location, is_app_user FROM user WHERE uid ';
  $fql = array(
    'friends' => 'SELECT uid2 FROM friend WHERE uid1 = me()',
    'friends_details' => $common_fields_fql . 'IN (SELECT uid2 FROM #friends)',
    'me' => $common_fields_fql . '= me()',
    'family' => 'SELECT uid, birthday, name, relationship FROM family WHERE profile_id = me()',
  );
  $details = $facebook->api(array(
    'method'   => 'fql.multiquery',
    'queries'  => $fql,
  ));