Beyond Queries: Engineering Full Neo4j PHP Driver Compliance with Bolt and TestKit

Session track: Modern Applications

Session time: 05:00 am - 05:30 am UTC November 12

Session description:

Graph databases have become a critical component of modern applications powering recommendations, fraud detection, knowledge graphs, AI assistants, and connected data platforms. While developers often focus on modeling and querying graph data, every interaction with Neo4j depends on a database driver that handles authentication, sessions, transactions, routing, retries, and protocol communication. In this session,we will explore how PHP applications communicate with Neo4j through the Neo4j PHP Driver and what happens behind the scenes when a query is executed. Starting with the fundamentals of graph databases and Neo4j’s architecture, the session will follow a query’s journey from a PHP application through the driver and into Bolt, Neo4j’s binary protocol. The session will then introduce Neo4j TestKit, the framework used to validate driver behavior across languages and ensure compliance with Neo4j specifications. Using real examples from improving TestKit support in the Neo4j PHP Driver, Pratiksha will demonstrate how protocol-level debugging, compliance testing, and specification-driven development help build reliable graph infrastructure. By attending this session, you will gain a practical understanding of how Neo4j drivers work internally, how Bolt enables communication between applications and databases, how TestKit validates driver behavior, and why open-source contributions are essential for maintaining consistency and reliability across the Neo4j ecosystem.