w whyhi i keep getting this warning and i dont know why
Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /users/2014/daf1/public_html/cs1109/lab18/adding.php on line 13
$add_topic_res = mysql_query($dbconnection, $add_topic_sql) or die(mysql_error($dbconnection));
if anyone could help me it would be great
cheers