alert('非法访问');history.go(-1)"; exit; } //if($_SESSION["vip"]!=1){ // echo ""; // exit; //} if(isset($_SESSION['expiretime'])) { if($_SESSION['expiretime'] < time()) { unset($_SESSION['expiretime']); header('Location: admin.php?TIMEOUT'); // 登出 exit(0); } else { $_SESSION['expiretime'] = time() + 3600; // 刷新时间戳 } } $t=time(); ?>