Array to string conversion

[eluser]Colin Williams[/eluser]
Ah.. my bad. The Upload library is throwing the error, not your code. It expects the field to be a string, not an array, and for some reason, it doesn't check first. I would just name your upload field(s) something like upload_1, upload_2, etc, and then call do_upload in a loop for each one that has a non empty value.

I'm surprised the upload class doesn't accommodate arrays of files. It's not like it's an exotic process.