Shortest possible encoded string with decode possibility (shorten url) using only PHP

Question

I\'m looking for a method that encodes an string to shortest possible length and lets it be decodable (pure PHP, no SQL). I have working sc

Answer 1

I think this would be better done by not obscuring at all. You could quite simply cache returned images and use a handler to provide them. This requires the image sizes to be hardcoded into the php script. When you get new sizes you can just delete everything in the cache as it is 'lazy loaded'.

1. Get the image from the request
This could be this: /thumbnail.php?image=img.jpg&album=myalbum. It could even be made to be anything using rewrite and have a URL like: /gallery/images/myalbum/img.jpg.

2. Check to see if a temp version does not exist
You can do this using is_file().

3. Create it if it does not exist
Use your current resizing logic to do it, but don't output the image. Save it to the temp location.

4. Read the temp file contents to the stream
Pretty much just output it.

Here is an untested code example...