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Vendor yiisoft
Package cache-db
Short Description Yii Caching Library - DB Handler
License BSD-3-Clause
Homepage https://www.yiiframework.com/

Keywords framework cache db yii psr-16

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Example code of yiisoft/cache-db

Informations about the package cache-db

Yii Cache Library - DB Handler

This package implements database-based PSR-16 cache.

Supported databases

Packages	PHP	Versions
[db-mssql]	8.0 - 8.2	2017 - 2022
[db-mysql/mariadb]	8.0 - 8.2	5.7-8.0/10.4-10.10
[db-oracle]	8.0 - 8.2	11C - 21C
[db-pgsql]	8.0 - 8.2	9.0 - 15.0
[db-sqlite]	8.0 - 8.2	3:latest

Requirements

PHP 8.0 or higher.
PDO PHP extension.

Installation

The package could be installed with Composer:

Create database connection

For more information see yiisoft/db.

Database Preparing

Package provides two way for preparing database:

Raw SQL. You can use it with the migration package used in your application.
- Ensure tables:
  - MSSQL,
  - MySQL / MariaDB,
  - Oracle,
  - PostgreSQL
  - SQLite
- Ensure no tables:
  - MSSQL,
  - MySQL / MariaDB,
  - Oracle,
  - PostgreSQL
  - SQLite
DbSchemaManager for ensureTable(), ensureNoTable() methods for cache table (by default {{%yii_cache}}).

Configuration

When creating an instance of \Yiisoft\Cache\Db\DbCache, you must pass an instance of the database connection.

$db (\Yiisoft\Db\Connection\ConnectionInterface) - The database connection instance.
$table (string) - The name of the database table to store the cache data. Defaults to "cache".
$gcProbability (int) - The probability (parts per million) that garbage collection (GC) should be performed when storing a piece of data in the cache. Defaults to 100, meaning 0.01% chance. This number should be between 0 and 1000000. A value 0 meaning no GC will be performed at all.

General usage

The package does not contain any additional functionality for interacting with the cache, except those defined in the PSR-16 interface.

In order to delete value you can use:

To work with values in a more efficient manner, batch operations should be used:

getMultiple()
setMultiple()
deleteMultiple()

This package can be used as a cache handler for the Yii Caching Library.

Additional logging

In order to log details about failures you may set a logger instance. It should be Psr\Log\LoggerInterface::class. For example, you can use yiisoft\Log:

This allows you to log cache operations, when ocurring errors, etc.

Documentation

Internals

If you need help or have a question, the Yii Forum is a good place for that. You may also check out other Yii Community Resources.

License

The Yii Cache Library - DB Handler is free software. It is released under the terms of the BSD License. Please see LICENSE for more information.

Maintained by Yii Software.

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All versions of cache-db with dependencies

PHP Build Version

Package Version

Version 1.0.0 Release 09. May 2023
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Requires php Version ^8.0
ext-pdo Version *
psr/log Version ^2.0|^3.0
psr/simple-cache Version ^2.0|^3.0
yiisoft/db Version ^1.0

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