PHP强制下载文件方法浅析

$filename = "test.txt";
header ("Content-Type: application/force-download");
header ('Content-Disposition: attachment;filename="'.$filename.'"');
readfile ($filename);

如此便可以实现文件直接下载而非打开。

原理分析: 1，header ("Content-Type: application/force-download"); //强制下载; 2，header ('Content-Disposition: attachment;filename="'.$filename.'"'); //实现文件下载.最后readfile($filename)读取文件进行下载.