WordPress Version: 6.1
/**
* Checks whether a user is still logged in, for the heartbeat.
*
* Send a result that shows a log-in box if the user is no longer logged in,
* or if their cookie is within the grace period.
*
* @since 3.6.0
*
* @global int $login_grace_period
*
* @param array $response The Heartbeat response.
* @return array The Heartbeat response with 'wp-auth-check' value set.
*/
function wp_auth_check($response)
{
$response['wp-auth-check'] = is_user_logged_in() && empty($GLOBALS['login_grace_period']);
return $response;
}