oauth-php is a PHP library for OAuth consumers and servers. It has an extensible OAuth store, including a full working implementation of a MySQL store. The library implements methods to: verify incoming requests against the library; to sign outgoing requests, with curl support for actually doing the request; to sign requests with a body; to administrate consumer keys and tokens for multiple users (server and consumer side); and to log incoming and outgoing requests handled by the library (optionally in the database).
image saver is a PHP class which can open an uploaded file image in either JPEG, PNG, or GIF format and resize it to a given width and height. Either the width or height can be set to auto, so it gets adjusted to keep the original image proportion based on the value set for the other dimension. The processed image can be saved to a new file in a given target directory using the JPEG format. The compression quality of the saved image is configurable.