php - Facebook 图形 API 循环通过分页

Question

所以我使用这个脚本来循环访问给定页面的事件。突然我发现它不再起作用了:(

我觉得这可能是一个错误，因为如果您选择任何页面，使用 access_token 查看事件，您将无法为“下一个”分页 URL 取回任何数据。例如尝试 https://graph.facebook.com/evenightclub/events在 apigee.com 中

有什么想法吗？

($fid是页面对象id)

    try {
    $facebook = new Facebook(array(
      'appId'  => '<removed>',
      'secret' => '<removed>',
    ));
    $access_token = $facebook->getAccessToken();

    $events_data = array();
    $offset = 0;
    $limit = 5000;  
    $params = array('access_token' => $access_token);

    //fetch events from Facebook API
    $data = $facebook->api("$fid/events/?limit=$limit&offset=$offset", $params);
    $events_data = array_merge($events_data, $data["data"]);

    //loop through pages to return all results
    while(in_array("paging", $data) && array_key_exists("next", $data["paging"])) {
        $offset += $limit;
        $data = $facebook->api("$fid/events/?limit=$limit&offset=$offset", $params);
        $events_data = array_merge($events_data, $data["data"]);
    }}

Answer 1

您的代码对我有用，我唯一做的就是在将其与现有信息合并之前确保 count($data["data"]) > 0。所以它看起来像这样:

//loop through pages to return all results
while(in_array("paging", $data) && array_key_exists("next", $data["paging"])) {
    $offset += $limit;
    $data = $facebook->api("$fid/events/?limit=$limit&offset=$offset", $params);
    // make sure we do not merge with an empty array
    if (count($data["data"]) > 0){
        $events_data = array_merge($events_data, $data["data"]);
    } else {
        // if the data entry is empty, we have reached the end, exit the while loop
        break;
    }
}}