One validation callback when using arrays

[eluser]jmadsen[/eluser]
I don't really understand what you are trying to do, but it seems to me you are mistaking how this is supposed to work.

To me, validation is intended to work against each field individually. If you would like to do them all as a single form check, write your own function that does what you need, and then fail the validation if something fails.

Can you give a more detailed example of what you are after?