How can one troubleshoot and resolve the error message related to protocol information in the App Domain when registering a Facebook App in PHP?

To troubleshoot and resolve the error message related to protocol information in the App Domain when registering a Facebook App in PHP, you can ensure that the App Domain specified in your Facebook Developer settings matches the domain of your website. Additionally, make sure that the protocol (http or https) is included in the domain. 

// Ensure that the App Domain in your Facebook Developer settings matches the domain of your website
// Make sure to include the protocol (http or https) in the domain

$fb = new Facebook\Facebook([
  'app_id' => 'your_app_id',
  'app_secret' => 'your_app_secret',
  'default_graph_version' => 'v3.2',
]);

$helper = $fb->getRedirectLoginHelper();

$permissions = ['email']; // optional

$loginUrl = $helper->getLoginUrl('https://yourwebsite.com/fb-callback.php', $permissions);

Keywords

Facebook App PHP Protocol Information App Domain Error Message

Related Questions