Nested Arrays

Hi, Is there anyway to do a nested array, I have looked at the various array functions and can't figure this out (if possible). I want to be able to put each field of a row into an array, and then put that entire row and into another array. so when I display it, I would have: row1 - col1 col2 col3 col4 col5 row2 - col1 col2 col3 col4 col5 row3 - col1 col2 col3 col4 col5 row4 - col1 col2 col3 col4 col5 row5 - col1 col2 col3 col4 col5 etc. (depending on how many rows there are). TIA