<?php

use WHMCS\Database\Capsule;
use WHMCS\Config\Setting;

function only_clientarea($vars) {
            $user_id = false;
            if ($vars["userid"]) {
                $user_id = $vars["userid"];
            }
            if ($vars["user"]) {
                $user_id = $vars["user"];
            }
            if ($_SESSION["uid"]) {
                $user_id = $_SESSION["uid"];
            }

            $url = Setting::getValue('SystemURL');
               if($user_id === false){
                   header('Location: '.$url.'/login');
               }         
        }
    }
}

add_hook("ClientAreaPage", 1, "only_clientarea");

?>