actually, I found this in the code of a php based cms.
redirect('?module=blog', 0);
so it is possible. In this case, you are logged in at the admin level, so no harm no foul (I suppose). the first part is the url, and the second? I can't find any documentation for what the integer is for, but I guess it's either time, or data since it is attached to a form.
I, too, wanted to refresh a page after an event, and placing this in a better spot worked out well.