What's wrong with facebook api authorization?

Question

PHP

Hello. You need to post messages in the group. I'm trying to get an access_token I
created an application, a screenshot of the application settings


and a code from off sources, for example from here

<?
// старт сессии необходим библиотеке
session_start();

require_once __DIR__ . '/vendor/autoload.php';

// App ID и App Secret из настроек приложения
$app_id = "872746109905037";
$app_secret = "0432525a87e6350cb5d7fa3cad750e98";

// ссылка на страницу возврата после авторизации
// домен должен совпадать с указанным в настройках приложения
$callback = "http://mod.bfdev.ru/login-callback.php";

$fb = new Facebook\Facebook([
  'app_id'  => $app_id,
  'app_secret' => $app_secret,
  'default_graph_version' => 'v2.10',
]);
  
$helper = $fb->getRedirectLoginHelper();
$permissions = ['email', 'user_likes']; // optional
$loginUrl = $helper->getLoginUrl($callback, $permissions);

echo '<a href="' . $loginUrl . '">Log in with Facebook!</a>';

gives the following error


can anyone tell me what is wrong?

Answer 1

did not complete everything.
You need to click on the plus sign in Products and add Login via FB there and configure everything there