Getting a file size before upload had finished

in order to build an upload progress bar

[guarriman]

Hi.

I'm trying to build an upload progress bar, and I need to know the size of a file before the upload had finished.

I tried with 'filesize' function, but it shows the info when the upload has finished.

Any suggestion?

[coopster]

Perhaps this related thread will provide some insight ...
Finding PHP's temp file during upload [webmasterworld.com]