public function printTree($int = 0) {
		try {
			$signs = "";
			for ($i = 0; $i <= $int; $i++) {
				$signs .= "   ";
			}
			$signs .= "---";
			echo $this->getName() . PHP_EOL;

			foreach ($this->listContents(false) as $value) {
				echo $signs . $value->getName() . PHP_EOL;
				if ($value->isDirectory()) {
					$value->printTree($int++);
				}
			}
		} catch (DirectoryNotFoundException $e) {
		}
	}