Array
(
    [0] => Array
        (
            [0] => 08001
            [SQLSTATE] => 08001
            [1] => 64
            [code] => 64
            [2] => [Microsoft][SQL Server Native Client 11.0]TCP Provider: 指定的网络名不再可用。

            [message] => [Microsoft][SQL Server Native Client 11.0]TCP Provider: 指定的网络名不再可用。

        )

    [1] => Array
        (
            [0] => 08001
            [SQLSTATE] => 08001
            [1] => 64
            [code] => 64
            [2] => [Microsoft][SQL Server Native Client 11.0]Client unable to establish connection
            [message] => [Microsoft][SQL Server Native Client 11.0]Client unable to establish connection
        )

)