mysqli_sql_exception Object
(
    [message:protected] => 由于目标计算机积极拒绝，无法连接。

    [string:Exception:private] => 
    [file:protected] => D:\wwwroot\mpr\classes\database.php
    [line:protected] => 64
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => D:\wwwroot\mpr\classes\database.php
                    [line] => 64
                    [function] => __construct
                    [class] => mysqli
                    [type] => ->
                    [args] => Array
                        (
                            [0] => localhost
                            [1] => root
                            [2] => nt11041104
                            [3] => u199015239_mpr
                        )

                )

            [1] => Array
                (
                    [file] => D:\wwwroot\mpr\mingle-settings.php
                    [line] => 16
                    [function] => __construct
                    [class] => Sap_Database
                    [type] => ->
                    [args] => Array
                        (
                        )

                )

            [2] => Array
                (
                    [file] => D:\wwwroot\mpr\mingle-config.php
                    [line] => 57
                    [args] => Array
                        (
                            [0] => D:\wwwroot\mpr\mingle-settings.php
                        )

                    [function] => require_once
                )

            [3] => Array
                (
                    [file] => D:\wwwroot\mpr\index.php
                    [line] => 3
                    [args] => Array
                        (
                            [0] => D:\wwwroot\mpr\mingle-config.php
                        )

                    [function] => include_once
                )

        )

    [previous:Exception:private] => 
    [code:protected] => 2002
    [sqlstate:protected] => HY000
)
Unable to connect to database