This is a implementation of the CouchDB replication API in PHP.
The implementation is framework agnostic. The demo currently works with Symfony2, but you can integrate it with any other Framework.
You can use custom storage engines. The tests currently run against a in-memory storage, but we successfully demoed it against a MySQL storage. Thus replicating a CouchDB into a MySQL database and back into another CouchDB.
Warning
This is work in progress. Do not rely on anything in here. While finishing the implementation basically everything might change.