Traverse directory - Find empty directory

Hi I'm using Spl RecursiveDirectoryIterator to traverse a directory and have no problem with it but now I'm stuck. I only need to display directories with no files in it. Can someone help with this? My current code: set_time_limit(0); $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator('c:\dev'), RecursiveIteratorIterator::SELF_FIRST); foreach($files as $file) { if ($files->isDir()) { echo $file . "<br/>"; } } I have c:\dev c:\dev\php c:\dev\php\file1.php c:\dev\php\file2.php c:\dev\php\test c:\dev\php\test\db I would like to display 'test' because although there is a 'db' folder, there are no files in c:\dev\php\test Bets regards, holo