php - Facebook 页面墙自动发布图片调整大小

Question

我已成功创建代码，使用长期访问 token 将我的网站输入发布到 Facebook 页面。

使用的SDK:PHP SDK v5

问题

1) 尽管我共享绝对路径，但图片不显示。

2) 使用以下代码发布的图片区域，显示全宽。有没有办法像预期的结果图像那样调整大小。

我的代码

if(!isset($_SESSION)){session_start();}

require_once 'facebook-sdk-v5/autoload.php';
//facebook page id
$pageId = 'XXXXXXXXXXXXXX';

$fb = new Facebook\Facebook([
  'app_id' => 'XXXXXXXXXXXXXX',
  'app_secret' => 'XXXXXXXXXXXXXX',
  'default_graph_version' => 'v2.5',
]);

//LONG LIVED ACCESS TOKEN (60 DAYS)
$token = 'XXXXXXXXXXXXXXXXXXXXXX';

if (isset($token)) 
{
    $client = $fb->getOAuth2Client();

    try 
    {
      $accessToken = $client->getLongLivedAccessToken($token);
    } 
    catch(Facebook\Exceptions\FacebookSDKException $e) 
    {
      echo $e->getMessage();
      exit;
    }


    $response = $fb->get('/me/accounts', (string) $token);

    foreach ($response->getDecodedBody() as $allPages) 
    {
        foreach ($allPages as $page ) 
        {               

            if (isset($page['id']) && $page['id'] == $pageId) 
            { // Suppose you save it as this variable
                $appAccessToken = (string) $page['access_token'];
                break;
            }
        }
    }

    $response = $fb->post(
        '/'.$pageId.'/feed',
        array(
            "message" => "http://www.aazabc.com/30",
            "link" => "http://www.aazabc.com/30",
            "picture" => "http://www.aazabc.com/images/jobs.jpg",
            "name" => "UK SHIFT INBOUND CUSTOMER SERVICE / BOTH SIDE CABS",
            "caption" => "www.aazabc.com",
            "description" => "Hiring For UK Telecom Customer Service Process Inbound Customer Service UG / Grad / Dropout CAN Apply Freshers Can Apply 5 Days Working Location Gurgaon International Training Facility Both Side Cab Salary 20K - 25K + Incentives (8K-10K)"
        ),
        $appAccessToken
    );

    // Success
    $postId = $response->getGraphNode();
//    echo $postId;

} 

预期结果(如果可能)

Answer 1

1. 当我尝试访问您提供的图片 url 时，出现 404 错误:找不到图片。这就是未加载 is 的原因。
2. 您想要的结果有点过时了。 Facebook wants the image至少为 200x200 像素，但图像越大(在特定纵横比下)越好:

Use images that are at least 1200 x 630 pixels for the best display on high resolution devices. At the minimum, you should use images that are 600 x 315 pixels to display link page posts with larger images. Images can be up to 8MB in size.

还要确保使用 og:image:width 和 og:image:height 让 Facebook 知道实际图像大小是多少。

提示:请使用Facebook debug tool尝试并纠正您的错误。