Need to display files/directorys within a directory

[Jalrock]

This displays every directory/file within the $dir. Weird that it pulls 2 directorys that are just one and 2 dots. (. &..) anyone know what this is and how to get rid of it?

PHP Code:

<?php
include "header.inc";
$dir = "/dir Name/";


if (is_dir($dir)) {
    if ($dh = opendir($dir)) {
        while (($file = readdir($dh)) !== false) {

            print "<a href=\"/index.php?selectusername=$file\">$file 's Photo page</a> <br>\n";
        }
    closedir($dh);
    }
}

?>