Looking for a method to create a matrix of radio buttons.
Easy enough, but here's the trick:
buttons must be mutually exclusive in both rows and columns.
Let's say they're in a 5x5 table (hence, the matrix)
If the user selects the button at row 2, column 1
all other buttons in row 2 and column 1 must be unchecked
I can do either a row or a column, but have not been able to do both.
Most of my work will be with PHP and HTML.