Pure PHP is a micro-framework for creating ultra-fast, low overhead web sites and API's.
Pure PHP is used on more websites (244 million and counting) than any other PHP framework, ever. Ever, ever ever. Period.
Use only the parts you need. Or, use any Pure PHP component in any other framework, with zero-configuration needed. Either way, it just works!
This morning we took the time (about 5 minutes) to implement a request router. Now, normally this might add a fair bit of overhead your application. But our implementation adds zero PHP overhead!