protected function overwrite($current, $new, $handler = null)
    {
        if ($handler === null)
        {
            $handler = $this->overwriteHandler;
        }

        return $handler($current, $new);
    }
protected function overwrite($current, $new, $handler = null)
    {
        if ($handler === null)
        {
            $handler = $this->overwriteHandler;
        }

        return $handler($current, $new);
    }
protected function overwrite ( $ current , $ new , $ handler = null ) { if ( $ handler === null ) { $ handler = $ this -> overwriteHandler ; } return $ handler ( $ current , $ new ) ; }
Overwrites current config using known method.

@param array $current
@param array $new
@param callable|null $handler
@return array
Overwrites current config using known method .