pdf下载文件名称问题

Question

I am using the below code for secure pdf download. everything is working fine. the problem is downloaded pdf file name concats folder name also. I want to suppress the Folder name. Also provide any better solution for secured pdf downloads. Please check the below.

    $pdf_file = base64_decode($_GET['file_name']);
    $dir="Secured_files";
    $file = $dir."/".$pdf_file .".pdf";
    header("Content-Disposition: attachment; filename=" . urlencode($file));   
    header("Content-Type: application/octet-stream");

    header("Content-Type: application/download");
    header("Content-Description: File Transfer");            
    header("Content-Length: " . filesize($file));
    flush(); // this doesn't really matter.
    $fp = fopen($file, "r");
    while (!feof($fp))
    {
        echo fread($fp, 65536);
        flush(); // this is essential for large downloads
    } 
    fclose($fp);

file name is : here Secured_files is Folder name and xxxxx is file name.

Secured_filesxxxxx.pdf

Answer 1

$file_label = $pdf_file .".pdf";
$file = $dir."/".$file_label;
header("Content-Disposition: attachment; filename=" . urlencode($file_label));