Topic awaiting preservation: Passing image files in PHP

Sorry about the title, I wasn't sure what to call this one.

I'm writing a script that takes a .zip file upload, uses the exec() function to unpack it to the "photos" directory, then opens that directory with opendir() and passes each file to a function that uses another exec() function to make a thumbnail of the photo and put it in the "thumbnail" directory.

All this works except for one thing, the files that show up in the "thumbnails" directory are of 0 length. The files I expect to show up there do, they just don't have anything to them.

I get the feeling it's because I'm working with image files and opendir() -> readdir() is not the proper way to try and work with images.

Could someone please point me in the right direction?

Just in case you need (or want) to see the code I've posted it Here. Forgive the mess, I'm still playing around with the code and the logic.

Thanks

-Butcher-

The poster has demanded we remove all his contributions, less he takes legal action.
We have done so.
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No, they have unzipped just fine.

I still think it's how I'm passing them along to my "thumbnail" function, which I've tested by itself and I know works.


-Butcher-

btw, what are these strange pnm and ppm images?
are these netbpm specific file formats?

Grumble

Yes they are. To work with the netPBM programs you have to convert the images to the netPBM format, do what your going to do, and then convert them back to the format that you want.

-Butcher-

ah. thanks for the explanaition.

so whats pnm ad whats ppm?

pnm is a generic file name that recognizes and distinguishes between three different netpbm file formats.

pbm - Black and White

pgm - Shades of gray

ppm - Full color

Hope this helps

-Butcher-

oh yeah!
thanks very much!

Alrighty.

Let's see, you said the thumbnails are getting created correctly and just not transferred to the directory correctly?

Where are the thumbs that you can see?

It sounds like the file transfer part is actually correct, it's the thumbnail creation part that's broke.

Where are



.:[ The Tao of Steve ]:.
Be Desireless
Be Excellent
Be Gone
...................................

No, let me see if I can put it better.

I built the thumbnail function first and tested it one picture at a time, and it created the thumbnail and placed it in the proper directory. All was fine.

Then I set out to add the extra functionality to be able to upload a zip file. The code works fine except that the files that show up in the thumbnail directory, although named correctly, have no information in them (0 kb).

If I still didn't clear it up well enough, please say so and I'll try again.

-Butcher-

Hokay check this out.

First according to the most recent docs from php.net your while loop is wrong but let's change it to this anyway
But the biggie.
you're only sending the file name to the thumbnail function you're not sending the whole path to the file

$directory_name = "/home/my_place/public_html/test_gallery/$new_album";

			$dh = opendir($directory_name);

			while (false !== ($entry = readdir($dh)))

			{

				thumbnail($directory_name.$entry, $new_album);

			}

			closedir($dh);

.:[ The Tao of Steve ]:.
Be Desireless
Be Excellent
Be Gone
...................................

[This message has been edited by bitdamaged (edited 04-02-2002).]

Thanks Bitdamaged!!

You were absolutly right, all I had to do was make one little adjustment to what you gave me and it worked like a charm!!

thumbnail($directory_name."/".$entry, $new_album);

Just needed the / inbetween.

Thanks man!

-Butcher-