whenever i try to use mysql_num_rows(), it gets an error saying its undefined. I've installed the binary windows installation 4.3.6. Is there like a library i should install to get that function or something?
Although many of us will be in a position to help you, we can't do anything without an adequate amount of information.
Put simply, the more the better.
Please post your script (or the relevant portion) on the thread so that we can better help you.