无法使用PHP从我的文件夹下载文件

Question

I'm currently using localhost to run my pages and currently I am trying to download the files my users have uploaded and stored in a folder called uploaded_files

this is the code for my download page which isn't working and I'm not quite sure what's wrong.

<?php

$file = $_GET['file'];

if (file_exists($file)) {
header('Content-Description: File Transfer');
    header('Content-Type: application/force-download');
    header("Content-Disposition: attachment; filename=\"" . basename($file) . "\";");
    header('Content-Transfer-Encoding: binary');
    header('Expires: 0');
    header('Cache-Control: must-revalidate');
    header('Pragma: public');
    header('Content-Length: ' . filesize($name));
    ob_clean();
    flush();
    readfile("C:\xampp\htdocs\FYPproject\uploaded_files/".$file); //showing the path to the server where the file is to be download
    exit;
} else {
    echo "Download failed";
    echo $file;
}
?>

Answer 1

file_exists() need to receive the path of the file, if the file name is "test" and it's in "uploaded_files/" so you need to check file_exists("uploaded_files/test") . You don't need to pass the whole path if your php is already in "FYPproject" folder. It's the same for downloading files, you don't need to pass the whole path for readfile() .

Answer 2

You are passing a file path with backward slashes and forward slashes to readfile . Even if this is not the cause of your problem you should change it. Change it to this:

readfile("C:\\xampp\\htdocs\\FYPproject\\uploaded_files\\".$file);

Answer 3

并非所有浏览器都支持application/force-download因此在这种情况下，请尝试用application/octet-stream替换上面的代码，看看是否可行