Best way to cache resized images using PHP and MySQL

Question

What would be the best practice way to handle the caching of images using PHP.

The filename is currently stored in a MySQL database which is renamed to a GUID on upl

Answer 1

There is two typos in Dan Udey's rewrite example (and I can't comment on it), it should rather be :

RewriteCond %{REQUEST_URI} ^/images/cached/
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f
RewriteRule (.*) /images/generate.php?$1 [L]

Regards.