"; exit; } error_reporting(E_ALL & ~E_NOTICE); $user=$_SESSION['user']; $uid=$_SESSION['uid']; $name=$_SESSION['name']; $xuexiao=$_SESSION['xuexiao']; $nianji=$_SESSION['nianji']; $user_type=$_SESSION['user_type']; if ($user_type<>"teacher"){ echo ""; exit; } ?>