The Couchbase PHP SDK communicates to the cluster over Couchbase binary protocols. References present information to connect to a bucket, perform operations, and perform queries. Before installing the PHP SDK, developers need to install the C SDK available at http://docs.couchbase.com/developer/c-2.4/download-install.html
The emergence of platform-as-a-service (PaaS) offerings as a foundation to build applications in a way that abstracts traditional middleware is proving to be a boon for developers in the age of the cloud. The challenge is that there is no such thing as a single cloud. The cloud actually consists of a mix of programmable platforms that lie both inside and out of the traditional enterprise. Apprenda wants to make it easier to invoke those cloud resources with the inclusion of an API that allows developers to dynamically scale resources in response to user traffic demands or a specific policy requirement within the PaaS environment.