<?php
$directories = glob("/tmp/*", GLOB_ONLYDIR);
$complete = glob("/tmp/*");
$files = array_diff($directories, $complete);

echo "каталоги в /tmp/<BR>";

foreach($directories as $val) {
echo "$val<BR>\n";
}
echo"<BR>Файлы в /tmp/<BR>";

foreach($files as $val) {
echo "$val<BR>\n";
}