我在connection.Open()的远程Mysql基础上得到了奇怪的异常。此代码运行良好,但有时此错误会弹出。в MySql.Data.Common.StreamCreator.GetHostEntry(String hostname) в MySql.Data.MySqlClient.NativeDriver.Open() в MySql.
echo mysql_query("SELECT COUNT(*) FROM users_online_now")mysql_num_rows(): supplied argument is not a valid MySQL result resource..但是,如果我查询另一个表,例如:
echo mysql_query("SELECT COUNT(*) FROM users&qu