$num_rows = 3, $last_row = 2
Row #0:
	element 0 0 is fred
	element 0 1 is barney
Row #1:
	element 1 0 is george
	element 1 1 is jane
	element 1 2 is elroy
Row #2:
	element 2 0 is homer
	element 2 1 is marge
	element 2 2 is bart
	element 2 3 is lisa