Why you should not use mysql_fetch_assoc more than 1 time?

Question

Some people say you should not use mysql_fetch_assoc more than one time, why is that?

e.g.: I want to display two tables one with users who paid for mem

Answer 1

When someone says you can't call mysql_fetch_assoc() twice, they mean against the same resource. The resource result you pass in to mysql_fetch_assoc() is done by reference. You'll need to reset the position of the pointer before you can use mysql_fetch_assoc() a second time.

EDIT: And to do so, try using mysql_data_seek().