如何在没有 SDK 的情况下使用 PHP 发布到 Facebook 粉丝页面？

<?php
$page_access_token = 'XXXXXXX';
$page_id = 'YYYYYYYY';

$data['picture'] = "http://www.example.com/image.jpg";
$data['link'] = "http://www.example.com/";
$data['message'] = "Your message";
$data['caption'] = "Caption";
$data['description'] = "Description";

$data['access_token'] = $page_access_token;
$post_url = 'https://graph.facebook.com/'.$page_id.'/feed';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $post_url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$return = curl_exec($ch);
curl_close($ch);
?>