加个判断每次访问只跳转一次$current_url = http $_SERVERHTTP_HOST $_SERVERREQUEST_URI;$new_url = httpwwwhostgay $_SERVERREQUEST_URI;headerLocation $new_url;exit;

加判断的代码如下：

$current_url = "http://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; $new_url = "http://www.host.gay" . $_SERVER['REQUEST_URI'];

if ($current_url != $new_url) { header("Location: $new_url"); exit(); }