That documentation is nearly identical to all the other's, that's what I've come to notice about perl. All documenations are the same so if you don't understand one you're in a lot of trouble.

One of the things I don't get is where $filehandle comes from.

while (<$filename>) {
       print;
        }
[download]

Is that a built in variable or does it automatically assign itself from the upload field or do I need to assign it or what? It doesn't cover that anywhere. I guess this was the main part I couldn't understand.

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