I recently worked with Neo Code Software, Canada's largest FileMaker development and hosting company, to develop FXneoCache, an open-source tool that speeds up FileMaker-driven PHP web applications written using iViking's excellent FX.php.

FXneoCache extends FX.php, adding file or MySQL-based query caching. Existing FX.php applications can utilize the code with very few modifications, so if you develop FileMaker-driven web applications, please give it a try.