thinkphp Jump link is not preceded by a root path

Root Path Jump thinkphpphp

 showSuccess("注册成功",0,url("index","account"));

This is the original registration successful after jumping to a page
Now I want to jump to an external page but if only URL (www.xxxxx.com) is changed
And eventually it's www.genlujing.com/www/xxxxx/com.
It's definitely not going to work.

 function showSuccess($msg,$ajax=0,$jump='',$stay=0){    if($ajax==1)    {        $result['status'] = 1;        $result['info'] = $msg;        $result['jump'] = $jump;        header("Content-Type:text/html; charset=utf-8");        echo(json_encode($result));exit;    }    else    {        $GLOBALS['tmpl']->assign('page_title',$GLOBALS['lang']['SUCCESS_TITLE']." - ".$msg);        $GLOBALS['tmpl']->assign('msg',$msg);        if($jump=='')        {            $jump = $_SERVER['HTTP_REFERER'];        }        if(!$jump&&$jump=='')        $jump = APP_ROOT."/"; // 这里去掉也不行 还是会加上根路径        $GLOBALS['tmpl']->assign('jump',$jump);        $GLOBALS['tmpl']->assign("stay",$stay);        $GLOBALS['tmpl']->display("/Success.html");        exit;    }}

Success.html is used
Jump to

How to change between the above to jump to the external page

