1回答

• 

  myAbo

  2015-12-25 11:02:59

      static function getDatabase($id = 'proxy')
      {
          if ($id == 'proxy')
          {
              if (!self::$proxy)
              {
                  self::$proxy = new \IMooc\Database\Proxy;
              }
              return self::$proxy;
          }
   
          $key = 'database_'.$id;
          if ($id == 'slave')
          {
              $slaves = Application::getInstance()->config['database']['slave'];
              $db_conf = $slaves[array_rand($slaves)];
          }
          else
          {//这里单例出来的只是配置信息
              $db_conf = Application::getInstance()->config['database'][$id];
          }
          $db = Register::get($key);
          if (!$db) {
              $db = new Database\MySQLi();
             //根据配置信息实例$db,并储存到注册器数组中
              $db->connect($db_conf['host'], $db_conf['user'], $db_conf['password'], $db_conf['dbname']);
              Register::set($key, $db);
          }
          return $db;
      }

  第二个问题问什么？
  

  0 0