<"ITblog.zip"');
header('Content-Transfer-Encoding: binary');
readfile('test.zip');
######
 
###对当前文档禁用缓存###
header('Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
######
 
###显示一个需要验证的登陆对话框### 
header('HTTP/1.1 401 Unauthorized'); 
header('WWW-Authenticate: Basic realm="Top Secret"'); 
######
 
 
###声明一个需要下载的xls文件###
header('Content-Disposition: attachment; filename=ithhc.xlsx');
header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
header('Content-Length: '.filesize('./test.xls')); 
header('Content-Transfer-Encoding: binary'); 
header('Cache-Control: must-revalidate'); 
header('Pragma: public'); 
readfile('./test.xls'); 
######
?>