//遍历文件夹下面所有的文件
function my_scandir($dir)
{
	$files = array();
	if ($handle = opendir($dir)){
		while (($files = readdir($handle)) !== false){
			if ($files != "." && $files != "."){
				$files[$files] = my_scandir($dir . "/" . $files);
			} else {
				$files[] = $files;
			}
		}
	}
	
	closedir($handle);
	return $files;
}