Home php教程 php手册 php运用readfile函数给隐藏下载文件地址增加权限判断

php运用readfile函数给隐藏下载文件地址增加权限判断

Jun 21, 2016 am 08:52 AM
content file header url

1 以上代码实现了真是URL路径的隐藏功能, 本页开头可以进行权限判断。

2 效果如图,我们看到下面文件下载的URL已经被test.php隐藏.

 

 


02 $file = get_file_address();// 文件的真实地址(支持url,不过不建议用url)
03
04 if (file_exists($file)) {
05 header('Content-Description: File Transfer');
06 header('Content-Type: application/octet-stream');
07 header('Content-Disposition: attachment; filename='.basename($file));
08 header('Content-Transfer-Encoding: binary');
09 header('Expires: 0');
10 header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
11 header('Pragma: public');
12 header('Content-Length: ' . filesize($file));
13 ob_clean();
14 flush();
15 readfile($file);
16 exit;
17 }
18 ?>



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