renaming files

[Anon]

I am storing files on the server with md5 names, and keeping the actual files names in the database. I need to be able to rename the files to the actual name before making them available for download.

some of thse files may be 20MB+ so I don't want to make temp copies of them, plus I want to avoid problems where two of the actual file names are the same.

Is there any way to avoid temporily renaming the files and also avoid using the md5 names?

[Anon]

Hi
If you are looking at just changing the name while downloading then you can set it as a part of your download headers, read below

if ($startdownload == "yes") {

     header("Content-type: application/x-ms-download;name=$path_to_file"); 
            // $path_to_file is the download path, note if the above still doesnt                 // open the "Save Dialogue" use 
            // "Content-type: application/force-download "

     header("Content-Disposition: attachment; filename=$download_as"); 
            // replace the $download_as with your filename from the database

     exit; 

}