在codeigniter中动态添加数据库

Question

我正在开发 codeigniter 应用程序以允许用户添加编辑和修改数据库。

我想循环重复这段代码：

$db['db1']['hostname'] = 'localhost';
$db['db1']['username'] = 'ts4l_wp13';
$db['db1']['password'] = 'O&3D6c(0zD70.^9';
$db['db1']['database'] = 'ts4l_wp13';
$db['db1']['dbdriver'] = 'mysql';
$db['db1']['dbprefix'] = '';
$db['db1']['pconnect'] = FALSE;
$db['db1']['db_debug'] = TRUE;
$db['db1']['cache_on'] = FALSE;
$db['db1']['cachedir'] = '';
$db['db1']['char_set'] = 'utf8';
$db['db1']['dbcollat'] = 'utf8_general_ci';
$db['db1']['swap_pre'] = '';
$db['db1']['autoinit'] = TRUE;
$db['db1']['stricton'] = FALSE;

我这样做：

@$get_data = mysql_query("SELECT * FROM `database_name`");
    while($getdata =  mysql_fetch_assoc($get_data)){        
    $id='db'.$getdata['id'];
    $iid="$id";
                     $db["$iid"]['hostname'] = 'localhost';
                     $db["$iid"]['username'] = $getdata['username'];
                     $db["$iid"]['password'] = $getdata['password'];
                     $db["$iid"]['database'] = $getdata['name'];
                     $db["$iid"]['dbdriver'] = 'mysql';
                     $db["$iid"]['dbprefix'] = '';
                     $db["$iid"]['pconnect'] = FALSE;
                     $db["$iid"]['db_debug'] = TRUE;
                     $db["$iid"]['cache_on'] = FALSE;
                     $db["$iid"]['cachedir'] = '';
                     $db["$iid"]['char_set'] = 'utf8';
                     $db["$iid"]['dbcollat'] = 'utf8_general_ci';
                     $db["$iid"]['swap_pre'] = '';
                     $db["$iid"]['autoinit'] = TRUE;
                     $db["$iid"]['stricton'] = FALSE;
    }

还有这个街区。

// Loading  db and running query.
        $CI = &get_instance();      
        $this->db1 = $CI->load->database('db1', TRUE);
        $this->db1->set($data);
        $this->db1->insert($this->_table_name);
        $id=$this->db1->insert_id();

我这样做：

$this->load->model('mdb_m');
  $dbms =$this->mdb_m->get();

        if (count($dbms)) {
           foreach ($dbms as $dbm) {
              $mid=$dbm->id;
              $dbc='db'.$mid;
               $CI = &get_instance();   
               $this->db.$mid = $CI->load->database( "$dbc" , TRUE);
               $this->db.$mid->set($data);
               $this->db.$mid->insert($this->_table_name);
           }
        }

但它只在数组中插入第一个数据库然后停止并检索此错误"You have specified an invalid database connection group."

Answer 1

您可以从您提到的here.As中获得使用多个数据库的简要信息。 https://ellislab.com/codeigniter/user-guide/database/connecting.html

为了更好的方法，您可以制作一个加载程序文件来加载 database.I 遇到了同样的问题，并从这里获得了清晰的可视化结果

https://coderwall.com/p/_kyjvg/codeigniter-loading-up-multiple-databases

参考这里，如果仍然感到困惑，请回复我，谢谢。

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