PGAdapter has experimental support for the PostgreSQL PHP PDO driver. This sample application shows how to connect to PGAdapter with PHP PDO, and how to execute a simple query on Spanner.
The sample uses the Spanner emulator. You can run the sample on the emulator with this command:
php pdo_sample.php
PGAdapter and the emulator are started in a Docker test container by the sample application. Docker is therefore required to be installed on your system to run this sample.