Help with arrays in PHP

Question

Hi All,
I have created a page that shows thumbnail images of all
images in a
given directory. Here is the function that searches the
directory and
builds an array of qualified files:
> function getImages($dir) {
> $directory = new DirectoryIterator($dir);
> $fileTypes =
'#\.jpg$|\.jpeg$|\.gif$|\.png$|\.JPG$|\.GIF$|\.PNG$#i';
> $filtered = new RegexIterator($directory, $fileTypes);
> $array = array();
> foreach ($filtered as $item) {
> $array[] = $item->getFilename();
> }
> return new ArrayIterator($array);
> }
>
> // get an ArrayIterator of filenames and the total
number:
> $images = getImages('../images/images_news/');
> $totalImages = $images->count();
Here is the HTML and PHP used to display the images (I'm
excluding code
that is specific to the paging function):
> // Implement offset and files per page
> foreach (new LimitIterator($images, $offset,
$filesperpage) as
> $image) { ?>
> <div class="imgcont">
> <div class="imgholder">
> <img src="../images/images_news/<?php echo $image;
?>"
> alt="<?php echo $image; ?>" height="55"
class="center" />
> </div>
> <p class="smallname"><?php echo $image;
?></p><br />
> </div>
> <?php } ?>
> <div class="clear"><br />
My question is this. I need to provide a way to delete images
that will
no longer be needed. Actually, I need to be able to delete
the main
image and the thumbnail image, each of which is in a separate
directory. What I don't know is how this type of thing is
normally done
(I don't want the FTP route because I don't want a client
messing about
in the directory structure). And what I don't understand is
how to
select one or more files to delete when they were produced by
an array.
For ease of use, it would be nice if I could add a checkbox
that the
user could check to indicate that the image(s) should be
deleted. I
just can't figure out how to select the file(s). I sure hope
this is
not one of those simple things that will make me hide my head
in shame.
Any help would be most appreciated.
Brett

Answer 1

Brett wrote:
> the thumbnail images now have _tmb inserted between
> the file name and the extension. So when deleting I keep
getting
> warnings that the file mypic001.jpg cannot be found in
the thumbs
> directory. How do I get the _tmb into the file name?
foreach ($_POST['images'] as $image) {
unlink($mainImgDir . $image);
$pos = strrpos($image, '.');
$thumb = substr($image, 0, $pos) . '_tmb' . substr($image,
$pos);
unlink($thumbsDir . $thumb);
> By the way, you used unset() where I think you meant
unlink().
Yes, I did. Sorry about that.
> Finally, I have discovered that if I upload a file named
Ti301.JPG, I
> get Ti301.JPG001_thb.jpg. It seems that the strtolower()
function in
> getNextFilename5.php is not converting the uppercase
extension, it is
> just adding the incremented number plus _tmb and the new
extension. Any
> ideas about how to correct that?
That shouldn't be happening, but I don't have time to look
into that
now. Sorry.
David Powers, Adobe Community Expert
Author, "The Essential Guide to Dreamweaver CS3" (friends of
ED)
Author, "PHP Solutions" (friends of ED)
http://foundationphp.com/