php判断用户浏览器类型与来自页面
function chkre(){
global $_server, $r_main;
if(isset($_server['http_referer'])){
$u=parse_url($_server['http_referer']);
if($u['host']!=$_server['http_host'])return false;
}
return true;
}
function chkuag($a='msie'){
global $_server;
if(isset($_server['http_user_agent'])){
$age=strtoupper($_server['http_user_agent']);
if(strstr($age, $a))return true;
}
return false;
}