A.2.13. Commands out of sync
If you get Commands out of sync; you can't run this
command now in your client code, you are calling
client functions in the wrong order.
This can happen, for example, if you are using
mysql_use_result() and try to execute a new
query before you have called
mysql_free_result(). It can also happen if
you try to execute two queries that return data without calling
mysql_use_result() or
mysql_store_result() in between.
