php中页面3秒自动跳转

 function redirect($url, $msg)
{
       echo $msg."</br>/n";
       echo "<a href=/"".$url."/">如果没有跳转，请点这里跳转</a>/n";
       echo "<script language=/"javascript/">setTimeout(/"window.location.href='".$url."'/",3000)</script>";
}

php页面跳转代码：

header("localhost:index.php");