WordPress Version: 5.7
/**
* Validates the logged-in cookie.
*
* Checks the logged-in cookie if the previous auth cookie could not be
* validated and parsed.
*
* This is a callback for the {@see 'determine_current_user'} filter, rather than API.
*
* @since 3.9.0
*
* @param int|false $user_id The user ID (or false) as received from
* the `determine_current_user` filter.
* @return int|false User ID if validated, false otherwise. If a user ID from
* an earlier filter callback is received, that value is returned.
*/
function wp_validate_logged_in_cookie($user_id)
{
if ($user_id) {
return $user_id;
}
if (is_blog_admin() || is_network_admin() || empty($_COOKIE[LOGGED_IN_COOKIE])) {
return false;
}
return wp_validate_auth_cookie($_COOKIE[LOGGED_IN_COOKIE], 'logged_in');
}