header ("HTTP/1.1 404 Not Found");header ("HTTP/1.1 301 Moved Permanently");
header ("Location:http://www.baidu.com");header (‘Content-type: application/file‘);
header ("Content-Disposition: attachment; filename=‘test.file‘");
readfile ("test.file");原文地址：http://blog.51cto.com/12173069/2087006
