drupal7 根据不同的 域名，修改首页链接地址

//hook_url_inbound_alter
function menufun_url_inbound_alter(&$path, $original_path, $path_language){
    if( drupal_is_front_page() ){
       $host = $_SERVER['HTTP_HOST'];
       switch($host){
           case 'xxx.com':
               $path = 'node';
               break;
           case 'yyy.com':
               $path = 'menufun/menufunsub';
               default:
               break;
       }
   }
}