使用API​​将帖子上传到Facebook粉丝页面

Question

I wrote a code to upload videos to my Facebook fanpage, but it gets uploaded to the community of my fanpage.

May someone help me, what is the problem with my code?

My code:

$appId = 'xxxxxxxxxxx';
$appSecret ='xxxxxxxxxx';

$my_url = ':my website url';
$perms_str = "publish_actions";

$videoPath = 'xxxxxxxxxx';
$title = 'xxxxxxxxxx';
$descriptions = 'xxxxxxxxxxx';

if (!isset($_GET['code'])) {
    $auth_url = "http://www.facebook.com/dialog/oauth?client_id="
        . $appId . "&redirect_uri=" . urlencode($my_url)
        . "&scope=" . $perms_str;
    echo("<script>top.location.href='" . $auth_url . "'</script>");
} else {
    $token_url = "https://graph.facebook.com/oauth/access_token?client_id="
        . $appId . "&redirect_uri=" . $my_url
        . "&client_secret=" . $appSecret
        . "&code=" . $_GET['code'];

    $response = file_get_contents($token_url);
    $access_token = Json::decode($response)['access_token'];

    $fb = new Facebook([
       'app_id' => $appId,
       'app_secret' => $appSecret,
       'default_graph_version' => 'v2.10',
    ]);

    $pageId = 'xxxxxxxxxxxx';

    $fileToUpload = $videoPath ;
    $whereUpload = '/'.$pageId.'/videos';

    $data = [
        'title' => $_SESSION['fileToUpload']['title'],
        'caption' => $_SESSION['fileToUpload']['descriptions'],
        'source' => $fb->fileToUpload($fileToUpload)
    ];
}

try {
    $response = $fb->post($whereUpload, $data, $access_token);
} catch (Facebook\Exceptions\FacebookResponseException $e) {
    // When Graph returns an error
    echo 'Graph returned an error: ' . $e->getMessage();
    exit;
} catch (Facebook\Exceptions\FacebookSDKException $e) {
    // When validation fails or other local issues
    echo 'Facebook SDK returned an error: ' . $e->getMessage();
    exit;
}

Answer 1

thank you cBroe , i added this code and this worked

 $token_url = "https://graph.facebook.com/oauth/access_token?client_id="
    . $appId . "&redirect_uri=" . $my_url
    . "&client_secret=" . $appSecret
    . "&code=" . $_GET['code'];

 $response = file_get_contents($token_url);
 $access_token = Json::decode($response)['access_token'];

 $ch = curl_init();
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 curl_setopt($ch, CURLOPT_URL, 
     'https://graph.facebook.com/v2.10/'.$pageId.'/?
      access_token='.$access_token.'&debug=all&fields=access_token&format=json 
      &method=get&pretty=0&suppress_http_code=1');
  $content = curl_exec($ch);
  $pageAccessToken=Json::decode($content)['access_token'];