Doorzoeken van mappen

<?php
$savedPaths = array();
function loadFiles($map){
	$arr = array();
	$iterator = new RecursiveDirectoryIterator($map);
	foreach (new RecursiveIteratorIterator($iterator, RecursiveIteratorIterator::CHILD_FIRST) as $bestand){
		if($bestand->isFile() || $bestand->isDir())$arr[]=$bestand->getFileName();
	}
	return $arr;
}
function loadFolder($map){
	$arr = array();
	$savedPaths = array();
	$iterator = new RecursiveDirectoryIterator($map);
	$b=0;
	foreach (new RecursiveIteratorIterator($iterator, RecursiveIteratorIterator::CHILD_FIRST) as $bestand){
		if(!in_array($bestand->getPath(),$savedPaths)){
			$path = explode('\\',$bestand->getPath());
			$arr[] = $path;
			$savedPaths[] = $bestand->getPath();
			$arr[$b]['files'] = loadFiles($savedPaths[$b]);
			$b++;
		}
	}
	/*echo '<pre>';
	print_r($savedPaths);
	echo '</pre>';*/
	return $arr;
}

$mappen = loadFolder('.');
echo '<pre>';
print_r($mappen);
echo '</pre>';
?>

Array
(
    [0] => Array
        (
            [0] => .
            [files] => Array
                (
                    [0] => directory.php
                    [1] => map1
                    [2] => bestand.txt
                    [3] => bestand2.txt
                    [4] => subsubmap1
                    [5] => submap1
                    [6] => submap2
                    [7] => map2
                )
        )
    [1] => Array
        (
            [0] => .
            [1] => map2
            [2] => submap1
            [files] => Array
                (
                    [0] => bestand.txt
                    [1] => bestand2.txt
                    [2] => subsubmap1
                )
        )
    [2] => Array
        (
            [0] => .
            [1] => map2
            [2] => submap1
            [3] => subsubmap1
            [files] => Array
                (
                    [0] => bestand2.txt
                )
        )
    [3] => Array
        (
            [0] => .
            [1] => map2
            [files] => Array
                (
                    [0] => bestand.txt
                    [1] => bestand2.txt
                    [2] => subsubmap1
                    [3] => submap1
                    [4] => submap2
                )
        )
)