protected static function indent()
    {
        $char = (static::$mode == "html") ? "&nbsp;" : " ";

        for ($i = 0; $i < static::$indent; $i++) {
            for ($y = 0; $y < 4; $y++) {
                echo $char;
            }
        }
    }
protected static function indent()
    {
        $char = (static::$mode == "html") ? "&nbsp;" : " ";

        for ($i = 0; $i < static::$indent; $i++) {
            for ($y = 0; $y < 4; $y++) {
                echo $char;
            }
        }
    }
protected static function indent ( ) { $ char = ( static :: $ mode == "html" ) ? "&nbsp;" : " " ; for ( $ i = 0 ; $ i < static :: $ indent ; $ i ++ ) { for ( $ y = 0 ; $ y < 4 ; $ y ++ ) { echo $ char ; } } }
Output some indentation based on the current level

@return void
Output some indentation based on the current level