filename="test.txt";header("Content−Type:application/force−download");header("Content−Disposition:attachment;filename=".basename(filename = "test.txt";
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=" . basename(filename="test.txt";header("Content−Type:application/force−download");header("Content−Disposition:attachment;filename=".basename(filename));
echo $content; //这里是文件的内容
exit;