Showing Images and Directories

[deth4uall]

I am trying to create a script I can show in the list of directories and images in the folder that I am in. The supported types I am trying to only show are "image/jpg", "image/png" & "directory." I found this script but I am confused about how to implement it, I would like to have it as a index.php which would show the images and directory listings.

# image types to display 
$imagetypes = array("image/jpeg", "image/gif");
# Original PHP code by Chirp Internet: www.chirp.com.au 
# Please acknowledge use of this code by including this header. 
function getImages($dir) 
{ 
global $imagetypes; 
# array to hold return value 
$retval = array(); 
# add trailing slash if missing 
if(substr($dir, -1) != "/") $dir .= "/"; 
# full server path to directory  
$fulldir = "{$_SERVER['DOCUMENT_ROOT']}/$dir"; 
$d = @dir($fulldir) or die("getImages: Failed opening directory $dir for reading"); 
while(false !== ($entry = $d->read())) 
{ 
	# skip hidden files 
	if($entry[0] == ".") continue; 
	# check for image files 
	if(in_array(mime_content_type("$fulldir$entry"), $imagetypes)) 
	{ 
		$retval[] = array( "file" => "/$dir$entry", "size" => getimagesize("$fulldir$entry") ); 
	}
	elseif (is_dir($entry))
	{
		$dirval[] = $entry;
	} 
}
$d->close(); 
return $retval; 
}
# display on page 
foreach($images as $img) 
{ 
echo "<div class=\"photo\">"; 
echo "<img src=\"{$img['file']}\" {$img['size'][3]} alt=\"\"><br>\n"; 
echo "<a href=\"{$img['file']}\">",basename($img['file']),"</a><br>\n"; 
echo "({$img['size'][0]}x{$img['size'][1]})"; 
echo "</div>\n"; 
}

[deth4uall]

Any ideas on how I can either change it or do this from scratch? lol...