App in PHP

• Initializing a database connection

This page contains a detailed description of the code of a test app that is available as part of the YDB PHP SDK.

Note

The article is being updated.

Initializing a database connection

To interact with YDB, create an instance of the driver, client, and session:

• The YDB driver lets the app and YDB interact at the transport layer. The driver must exist throughout the YDB access lifecycle and be initialized before creating a client or session.
• The YDB client runs on top of the YDB driver and enables the handling of entities and transactions.
• The YDB session contains information about executed transactions and prepared queries, and is part of the YDB client context.

App code snippet for driver initialization:

1. <?php

3. use YandexCloud\Ydb\Ydb;

5. $config = [
6. // ...
7. ];

9. $ydb = new Ydb($config);

App code snippet for creating a session:

1. // obtaining the Table service
2. $table = $ydb->table();

4. // obtaining a session
5. $session = $table->session();