Now available – Azure Cosmos DB Graph API

The Azure Cosmos DB Graph API now supports the Apache Tinkerpop recommended Gremlin framework PHP. Read this Quickstart and see how to use PHP and the Azure Cosmos DB Graph API to build a console app by cloning an example from GitHub. 

If you don't have an Azure subscription, create a free account before you begin. Alternatively, you can try Azure Cosmos DB for free without an Azure subscription.

Source: Azure Roadmap