Facebook GRAPH API + PHP SDK:获取大型用户图片的URL

Question

我正在尝试将旧的FBML中的Facebook应用程序(嵌入小型多人Flash游戏的PHP脚本)重写为新的iFrame类型,它有点工作:

<?php

require_once('facebook.php');

define('FB_API_ID', '182820975103876');
define('FB_AUTH_SECRET', 'XXX');

$facebook = new Facebook(array(
            'appId'  => FB_API_ID,
            'secret' => FB_AUTH_SECRET,
            'cookie' => true,
            ));

if (! $facebook->getSession()) {
    printf('<script type="text/javascript">top.location.href="%s";</script>',
        $facebook->getLoginUrl(
                array('canvas'    => 1,
                      'fbconnect' => 0,
                      #'req_perms' => 'user_location',
        )));

} else {
    try {
        $me = $facebook->api('/me');

        $first_name = $me['first_name'];
        $city       = $me['location']['name'];
        $female     = ($me['gender'] != 'male');
        $fields     = $facebook->api('/me', array(
                          'fields' => 'picture',
                          'type'   => 'large'
                      ));
        $avatar     = $fields['picture'];

        # then I print swf tag and pass first_name;city;avatar to it

    } catch (FacebookApiException $e) {
        print('Error: ' . $e);
    }
}

?>

但我认为获取用户个人资料图片的调用会导致我的脚本执行第二次CURL提取,这可能是可以避免的吗？而且我还想使用新的GRAPH API而不是旧的REST API - 但我不确定如何重写该调用(我需要获得大而直接的用户图片).

Answer 1

如果您知道用户ID,只需使用:

<img src="http://graph.facebook.com/<UID>/picture?type=large" />

另请注意,您可以使用该URL通过cURL检索内容.如有必要,您还可以使用cURL跟踪重定向并获取最终URL.

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 
    "http://graph.facebook.com/<UID>/picture?type=large");

curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_exec($ch);

$url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);

curl_close($ch);

var_dump($url);

Answer 2

您可以使用FQL,而不是进行两次API调用,例如:

$result = $facebook->api(array(
    'method'=>'fql.query',
    'query'=>'SELECT uid,name,first_name,current_location,sex,pic_big FROM user WHERE uid=me()'
));

肯定fql.query不是一个图形的方法,但仍然是使用FQL的方式.