小编use*_*071的帖子

我正在阅读文档但我无法弄清楚如何在php中调用Facebook.showPermissionsDialog()

include_once './facebook-platform/php/facebook.php';
$facebook = new Facebook(my api keys go here);
$fb_user = $facebook->require_login();
/*this is where i want it to go */
$facebook->api_client->stream_publish("test");

我该怎么做呢？