file uploading - last modified date

Hi there,

I am writing a small application to handle file uploads for an intranet. The application prompts the user if the uploaded file already exists on the server, however, I would like to give them the option to overwrite files without prompt, if the uploaded files are newer than those on the server. I know I can use filemtime() to get the timestamp for the files on the server, but what about the uploaded files? I briefly thought I had a solution by doing filemtime($_FILES['uploaded_file']['tmp_name']), but of course this gives me the last modified date of the temporary copy on the server, not the original file. I have a feeling it is impossible to do what I am trying to do, as any timestamp data is not available in the $_FILES array - if anyone can confirm this, or perhaps give me some advice, I would appreciate it very much.

Thanks,

Ed
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