/** * @param \RecursiveIterator $iterator */ public function __construct(\RecursiveIterator $iterator) { parent::__construct($iterator); $this->setPrefixPart(self::PREFIX_LEFT, ''); $this->setPrefixPart(self::PREFIX_MID_HAS_NEXT, '│ '); $this->setPrefixPart(self::PREFIX_END_HAS_NEXT, '├ '); $this->setPrefixPart(self::PREFIX_END_LAST, '└ '); }