help with <select multiple

hi, if anyone could help, that'd be great. i have a database, with a table having a primary key of type int. selecting all the indexes, i then want to create a series of select multiple lists. using (in a loop for each index) echo "<select name=\"attribute$row[0][]\" multiple>"; and then a sub loop where all the option elements are fields from a different table yields on my web page <select name="attribute1[]" multiple> <option value ...</option> </select> ... <select name="attribute10[]" multiple> <option value= ...</option> </select> my problem is accessing the fields upon form submission. i once again have a loop for each index. how do I access these? $attribute$row[0][0] doesn't get the job done. if anyone has suggestions, or maybe a better way to do it, I would really appreciate it. thanks.