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

That sounds like a solid way to do it. The next step may be to go beyond PHP/MySQL.

Perhaps, tweak your headers:

If you're using PHP to send MIME types, you might also use 'Keep-alive' and 'Cache-control' headers to extend the life of your images on the server and take some of the load off of PHP/MySQL.

Also, consider apache plugin(s) for caching as well. Like mod_expires.

Oh, one more thing, how much control do you have over your server? Should we limit this conversation to just PHP/MySQL?