Facebook Graph API PHP SDK在页面上发布为页面

It's final try with PHP, if it fails, I'll try with JS. So my goal is to post on FB page as "Page name" through PHP: this is what I want to get

But all I get is shown pic below. Also, it's visible ONLY to this profile (not to friends/ppl who like/etc.).

This is my current code

function post_facebook($data=null, $redir = null){
        $result = "";
        require_once (ROOT. "/apps/configuration/models/ConfigurationItem.php");
        require_once (ROOT . "/components/facebook/facebook.php");

        $this->ConfigurationItem = new ConfigurationItem($this->getContext());

        $row=$this->ConfigurationItem->findByCatKeyItemKey('system','facebook_login');
        $apiid=$row['value']; <= Correct apiid

        $row=$this->ConfigurationItem->findByCatKeyItemKey('system','facebook_pass');
        $secret=$row['value']; <= Correct secret key

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

        $session = $facebook->getSession();
        $me = null;
        if ($session) {
            try {
                $uid = $facebook->getUser();
                $me = $facebook->api('/me');
            } catch (FacebookApiException $e) {
                error_log($e);
            }
            $message=$data['facebook_text'];
            $attachment = array(
                'message' => $data['facebook_text'],
                'name' => $data['name'],
                'link' => $this->getLinkToLatestNews(),
                'description' => '',
            );

            try {
                $facebook->api('/PAGE ID/feed/', 'post', $attachment);
                $result = "Facebook: Sent";
            } catch (FacebookApiException $e) {
                $result = "Facebook: Failed";
                error_log($e);
            }
        } else {
            $login_url = $facebook->getLoginUrl();
            header("Location: ".$login_url);
            exit;
        }

        echo $result;
        exit;
        //return $result;

    }

What I'm doing wrong? I couldn't find anything in API documentation/top google results, only for JS. Thanks for help!

You'll need to make sure you're requesting the 'manage_pages' permission for the user. Once you've got that you can do $facebook->api('/me/accounts') and you'll receive a token back (along with the page info) that you can use to post on the page as the page.

I struggled with this most of the day, then found that not using setAccessToken(page_access_token) was the only thing preventing it from working for me. I found that in a stackoverflow post from 18 months ago. I'll put my solution here, for anyone who has this question in the future:

protected $scope = "email,publish_stream,manage_pages";

    $url = "{$api_url}/{$fbusername}/accounts?access_token=".$access_token;
    $response = json_decode(file_get_contents($url));
    foreach($response->data as $data) {
        try
        {
            $res = $this->SDK->setAccessToken($data->access_token);
            $res = $this->SDK->api(
                "{$data->id}/feed",
                "POST",
                array('link' => 'www.example.com',
                      'message' => 'This is a test message from php',)
            );
            log::debug(__FUNCTION__, print_r($res,true));
        }
        catch (Exception $e)
        {
            log::debug(__FUNCTION__, $e->getType().": ".$e->getMessage());
        }

    }

$feed = '/v2.8/' . $pageID . '/' . "feed";
$params = array(
 "access_token" => AQUI TU TOKEN // see: https://developers.facebook.com/docs/facebook-login/access-tokens/
);
$params[ "link" ] = "https://zapatillasnewbalancebaratas.blogspot.com/2018/11/zapatilla-new-balance-ml515-col.html";
$params[ "message" ] = "Zapatilla New Balance Ml515 Col";
$params[ "method" ] = POST;

$graph_url = "https://graph.facebook.com" . $feed;


        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $graph_url);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);

        $output = curl_exec($ch);
        echo $output;
        curl_close($ch);