how to get the name of a variable?

Hi, I got varius radio buttons on a form like this: <input type="radio" name="1" value="pos"> <input type="radio" name="1" value="neg"> <input type="radio" name="2" value="pos"> <input type="radio" name="2" value="neg"> <input type="radio" name="3" value="pos"> <input type="radio" name="3" value="neg"> ....... They are a lot of them so I want to do something like a loop for getting the radio buttons values into a database. Is there a way of get the names of the variables? For example, I got this reult from the form: $1="pos"; $2="neg"; $3="pos"; .... and so on... the table have three columns--> id,exam_number, value. The values of the radio buttons have to be on the table like this: ID | exam_number | value ---------------------------------------- 101 | 1 | pos 102 | 2 | neg 103 | 3 | pos ...... 'ID' is an auto increment value, 'exam_number' is the name of the radio button variable and 'value' is the value of the radio button selected. Any ideas? Thanks,