I am the author of the neo4j PHP client library. We have recently released v2.0 which added lots of new features.
You can read about the client here: https://medium.com/neo4j/connect-to-neo4j-with-php-e10e24afedff or visit the repository here: https://github.com/neo4j-php/neo4j-php-client.
The client is inspired by the graphaware library which is deprecated. This client is built from the ground up and works with all versions of neo4j, cluster deployments and aura.
Any feedback or questions are welcome.