编撰给定文件夹路径 自动生成XML文件工具

编写给定文件夹路径 自动生成XML文件工具
编写给一个文件路径，然后读取路径下文件夹和文件名，自动生成XML文件，请问有大神编写过没有 ，求指导
------解决思路----------------------
基础代码

foreach(glob('images/*.*') as $fn) {
  $r[] = (object)array('filename' => $fn, 'type' => 'folder', 'folder' => 'site');
}
print_r($r);

Array
(
    [0] => stdClass Object
        (
            [filename] => images/000.bmp
            [type] => folder
            [folder] => site
        )

    [1] => stdClass Object
        (
            [filename] => images/0001.bmp
            [type] => folder
            [folder] => site
        )

    [2] => stdClass Object
        (