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我在尝试访问我们的 SCADA 网站时遇到此错误:

A Database Error Occurred

Unable to connect to your database server using the provided settings.

Filename: core/Loader.php

Line Number: 341

我扫描了 Loader.php 文件,在第 341 行找到了这段代码: $CI->db =& DB($params, $active_record);

这是带有错误代码的完整块:

public function database($params = '', $return = FALSE, $active_record = NULL)
    {
        // Grab the super object
        $CI =& get_instance();

        // Do we even need to load the database class?
        if (class_exists('CI_DB') AND $return == FALSE AND $active_record == NULL AND isset($CI->db) AND is_object($CI->db))
        {
            return FALSE;
        }

        require_once(BASEPATH.'database/DB.php');

        if ($return === TRUE)
        {
            return DB($params, $active_record);
        }

        // Initialize the db variable.  Needed to prevent
        // reference errors with some configurations
        $CI->db = '';

        // Load the DB class
        $CI->db =& DB($params, $active_record);
    }
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1 回答 1

1

您提到的文件正是问题发生时发生呼叫的位置。

真正的问题是:

  1. 您的设置application/configuration/database.php
  2. 您的数据库服务器已关闭、无法访问或凭据已更改
于 2017-02-10T15:25:33.073 回答