Like the other posters, I'm not absolutely sure what you're asking. But I thought I'd just guess and ask: do you have multiple form inputs with the same name, and you want your script to recognize that? (Where currently the script would just be overwriting the previous values each time through the loop). If so, I really highly suggest using CGI.pm, as it handles this quite nicely.

If you must do it yourself, think about using a slightly different data structure. For example, have the values in your hash be array references instead of scalar values. Then in the array you can hold as many multiple values as you want.

On the whole, though, this may not have been what you were asking, and if it was, my first recommendation would be to use CGI.pm.