CI_DB_driver::__construct PHP Method

    public function __construct($params)
    {
        if (is_array($params)) {
            foreach ($params as $key => $val) {
                $this->{$key} = $val;
            }
        }
        log_message('info', 'Database Driver Class Initialized');
    }

 /**
  * Class constructor
  *
  * @param	array	$params
  * @return	void
  */
 public function __construct($params)
 {
     parent::__construct($params);
     // Legacy support for DSN in the hostname field
     if (empty($this->dsn)) {
         $this->dsn = $this->hostname;
     }
 }