Extended MySQLi implements a MySQL database access wrapper using the MySQLi extension. It is based on the Reduced MySQLi class originally written by Mertol Kasanan. This version can account the memory usage and log the executed queries in the current page. It can also cache the query results in an XML file.
CSS Stacker and Compressor is a PHP class that can be used to compact several CSS files into a single file. It can take several CSS files and generate a single file by concatenating all files after having stripped any white-space. The class can serve the resulting CSS file as the current script output. The CSS may be compressed with GZIP. If the original files were not modified, the class may return HTTP status 304 to make the browser use a cached version and prevent serving a file that was not changed.