Understanding downloaded file location in php

I have this code in download.php file:

$file = //path to file (for example .xlsx file)
if (file_exists($file)) {
        header('Content-Description: File Transfer');
        header('Content-Type: application/vnd.ms-excel');
        header('Content-Disposition: attachment; filename=file.xlsx');
        header('Content-Transfer-Encoding: binary');
        header('Expires: 0');
        header('Cache-Control: must-revalidate');
        header('Pragma: public');
        header('Content-Length: ' . filesize($file));

So, if open site.com/download.php, excel file is downloaded.

My question is:

somehow, downloader can understand what is a downloaded xlsx file location on the server? or this is impossible?


No. The client will have no idea where on the server the excel file came from.

You could be generating it in realtime or scraping it from another site or loading from a file. No way to tell.

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