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Informations about the package ydb-php-sdk

YDB PHP SDK provides access to YDB from PHP code.

YDB is a open-source distributed fault-tolerant DBMS with high availability and scalability, strict consistency and ACID. An SQL dialect – YQL – is used for queries.

YDB is available in several modes:

Documentation

https://ydb.tech/docs/

Installation

The recommended method of installing is Composer.

Run the following:

Connection

First, create a database using Yandex Cloud Console.

YDB supports the following authentication methods:

Access token

Use your access token:

or:

OAuth token

You should obtain a new OAuth token.

Use your OAuth token:

or

JWT + private key

Create a service account with the editor role, then create a private key. Also you need a key ID and a service account ID.

Connect to your database:

or

JWT + JSON file

Create a service account with the editor role.

Create a service account JSON file, save it in your project as sa_name.json.

Connect to your database:

or:

Metadata URL

When you deploy a project to VM or function at Yandex.Cloud, you are able to connect to the database using Metadata URL. Before you start, you should link your service account to an existing or new VM or function.

or

Anonymous

or:

Determined by environment variables

The following algorithm that is the same for YDB-PHP-SDK applies:

  1. If the value of the YDB_SERVICE_ACCOUNT_KEY_FILE_CREDENTIALS environment variable is set, the System Account Key authentication mode is used and the key is taken from the file whose name is specified in this variable.
  2. Otherwise, if the value of the YDB_ANONYMOUS_CREDENTIALS environment variable is set to 1, the anonymous authentication mode is used.
  3. Otherwise, if the value of the YDB_METADATA_CREDENTIALS environment variable is set to 1, the Metadata authentication mode is used.
  4. Otherwise, if the value of the YDB_ACCESS_TOKEN_CREDENTIALS environment variable is set, the Access token authentication mode is used, where the this variable value is passed.
  5. Otherwise, the Metadata authentication mode is used.

Static credentials

Reading from text file

Usage

You should initialize a session from the Table service to start querying with retry.

As soon as your script is finished, the session will be destroyed.

Customizing queries

Normally, a regular query through the query() method is sufficient, but in exceptional cases, you may need to fine-tune the query settings. You could do it using the query builder:

Methods of the query builder:

You can chain these methods for convenience.

Logging

For logging purposes, you need use class, which implements \Psr\Log\LoggerInterface. YDB-PHP-SDK has build-in loggers in YdbPlatform\Ydb\Logger namespace:

Example of using:

gRPC

gRPC client's options

You can customize the gRPC client's behavior by setting options in config array

Example of using:


All versions of ydb-php-sdk with dependencies

PHP Build Version
Package Version
Requires php Version >=7.2
ext-bcmath Version *
ext-curl Version *
ext-grpc Version *
ext-json Version *
google/protobuf Version ~3.15.8
grpc/grpc Version ^1.35
phpseclib/phpseclib Version ^2.0|^3.0
psr/log Version ^1|^2|^3
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