txt文件下载

php中txt文件下载：

Header( "Content-type:application/octet-stream ");
Header( "Accept-Ranges:bytes");
header( "Content-Disposition:attachment;filename=task.txt");
header( "Expires:0");
header( "Cache-Control:must-revalidate,post-check=0,pre-check=0");
header( "Pragma:public");
echo "你想要的数据";
echo "\r\n";   //换行
echo "你想要的数据";
echo "\r\n";   //换行
echo "你想要的数据";
echo "\r\n";   //换行

文件名为task.txt