View file admin/includes/config.php

<?php

if(!file_exists('includes/lang.ini'))
{
   exit('Language file not exists');
}
else
{
   $data = parse_ini_file('includes/lang.ini', FALSE);
   foreach($data as $word => $translate)
   {
      define($word, $translate);
   }
}

// считываем данные об авторизации
require_once('includes/db.php');

$users = mysql_query('SELECT login, password FROM admins WHERE id = 1');
$user = mysql_fetch_array($users, MYSQL_ASSOC);
if($user['login'] == '')
{
   // на случай если упадет БД
   header('Location: login.php');
   exit;
}

?>