I have this error on my board while registering
Warning: mysql_free_result(): supplied argument is not a valid MySQL result resource in /home/.orsel/account/domain.com/db/mysql4.php on line 318

all code on and after line 318

mysql_free_result($query_id);

            return true;
        }
        else
        {
            return false;
        }
    }

    function sql_error()
    {
        $result['message'] = mysql_error($this->db_connect_id);
        $result['code'] = mysql_errno($this->db_connect_id);

        return $result;
    }

} // class sql_db

} // if ... define

?>

please help

Find out under what conditions the query '$query_id' runs. When mysql_free_result resurns this error, it usually means there is no result assigned to the var.

This is generally the case when a query only runs when certain conditions are met, such as a successful logon. You need to ensure mysql_free_result($query_id) only runs under the same condition.

At any rate, the resource will be freed up when the script finishes. Unless this is a memory hungry script, mysql_free_result really isn't required.