Title: WP DB Driver
Author: Marko Heijnen
Published: <strong>2013年6月28日</strong>
Last modified: 2015年12月27日

---

プラグインを検索

![](https://ps.w.org/wp-db-driver/assets/banner-772x250.png?rev=858861)

このプラグインは **WordPress の最新3回のメジャーリリースに対してテストされていま
せん**。もうメンテナンスやサポートがされていないかもしれず、最新バージョンの WordPress
で使用した場合は互換性の問題が発生する可能性があります。

![](https://s.w.org/plugins/geopattern-icon/wp-db-driver_464646.svg)

# WP DB Driver

 作者: [Marko Heijnen](https://profiles.wordpress.org/markoheijnen/)

[ダウンロード](https://downloads.wordpress.org/plugin/wp-db-driver.2.1.0.zip)

 * [詳細](https://ja.wordpress.org/plugins/wp-db-driver/#description)
 * [レビュー](https://ja.wordpress.org/plugins/wp-db-driver/#reviews)
 *  [インストール](https://ja.wordpress.org/plugins/wp-db-driver/#installation)
 * [開発](https://ja.wordpress.org/plugins/wp-db-driver/#developers)

 [サポート](https://wordpress.org/support/plugin/wp-db-driver/)

## 説明

This plugin adds an improved database layer to WordPress. It allows you to do more
then the default one and is always up-to-date with the changes core makes.

**mysql_\* functions**

The mysql_* functions are officially deprecated for PHP 5.5 and are throwing E_DEPRECATED
errors.
 On https://core.trac.wordpress.org/ticket/21663 there is discussion on 
this topic.

This plugin reflects those discussions.

**Why should I use this plugin?**

You should use this plugin if you want to start using PDO / MySQLi for WordPress.

## スクリーンショット

 * [[
 * The main settings page reports on what database drivers your PHP installation
   supports and lets you enable or disable the custom db.php drop-in for this plugin.

## インストール

 1. Verify that you have PDO or MySQLi
 2. Go to the settings page to install db.php or copy `wp-content/db.php` to your WordPress
    content directory (`wp-content/` by default.
 3. 完了 !

## FAQ

  Help, I’ve broken my site!

You can visit [http://yoursite.com/?wp-db-driver-emergency-override=1](http://yoursite.com/?wp-db-driver-emergency-override=1)(
replace yoursite.com with your real WordPress blog address) to temporarily disable
this plugin.
 Then you can login to your admin to deactivate the plugin and restore
your site’s functionality.

If you need to uninstall manually, you should remove the plugin folder as well as`
wp-content/db.php`.

  In what order are the drivers picked?

PDO > MySQLi > MySQL

  How do I specify a driver?

In your wp-config.php, add a new constant:

    ```
    define( 'WPDB_DRIVER', 'wpdb_driver_pdo_mysql' );
    ```

You can specify `wpdb_driver_pdo_mysql`, `wpdb_driver_mysqli`, or `wpdb_driver_mysql`.
Any other driver will cause an error.

  Which driver is best for my site?

They should all function equally well for WordPress. The MySQL extension is being
retired. In PHP 5.5, using this extension issues E_DEPRECATED errors.
 In PHP 5.6,
it will no longer be available. The two alternative drivers are PDO and MySQLi. 
If WordPress switches to MySQLi or PDO, some cool new features become available 
to developers.

[http://net.tutsplus.com/tutorials/php/pdo-vs-mysqli-which-should-you-use/](http://net.tutsplus.com/tutorials/php/pdo-vs-mysqli-which-should-you-use/)

  How to configure SSL?

You can set defined in your wp-config.php to make it work. This only works for MySQLi
and PDO.
 These defines are: DB_SSL_KEY, DB_SSL_CERT, DB_SSL_CA, DB_SSL_CA_PATH 
and DB_SSL_CIPHER.

In case of a different port number then you can pass this to your database host 
like: 127.0.0.1:

For more information see:
 – http://dev.mysql.com/doc/refman/5.5/en/ssl-connections.
html

## 評価

このプラグインにはレビューがありません。

## 貢献者と開発者

WP DB Driver はオープンソースソフトウェアです。以下の人々がこのプラグインに貢献し
ています。

貢献者

 *   [ Marko Heijnen ](https://profiles.wordpress.org/markoheijnen/)
 *   [ Kurt Payne ](https://profiles.wordpress.org/kurtpayne/)

[“WP DB Driver” をあなたの言語に翻訳しましょう。](https://translate.wordpress.org/projects/wp-plugins/wp-db-driver)

### 開発に興味がありますか ?

[コードを閲覧](https://plugins.trac.wordpress.org/browser/wp-db-driver/)するか、
[SVN リポジトリ](https://plugins.svn.wordpress.org/wp-db-driver/)をチェックするか、
[開発ログ](https://plugins.trac.wordpress.org/log/wp-db-driver/)を [RSS](https://plugins.trac.wordpress.org/log/wp-db-driver/?limit=100&mode=stop_on_copy&format=rss)
で購読してみてください。

## 変更履歴

#### 2.1.0

 * Sync with 4.4 ( Changeset 35787)
 * Changed is_mysql logic.

#### 2.0.1

 * Reupload code from GitHub

#### 2.0 (2015-07-25)

 * Sync with 4.2.3 ( Changeset 33310)
 * Increased minimal WordPress version to 4.2
 * Extending wpdb back again
 * Add ability to extend it with more drivers through the constant ‘WPDB_DRIVERS’
 * Fully compatible with the unit tests of WordPress except HHVM PDO

#### 1.9.3 (2015-05-07)

 * Sync with 4.2.2

#### 1.9.2 (2015-04-27)

 * Sync with 4.2.1

#### 1.9.1 (2015-04-23)

 * Fix setting charset and SQL mode for PDO

#### 1.9 (2015-04-23)

 * Sync to changeset 32261

#### 1.8.1 (2014-08-08)

 * Fix setting charset and SQL mode for PDO

#### 1.8 (2014-08-07)

 * Synced with trunk to Changeset 29165 excluding 27075
    - Ensure compatibility with MySQL 5.6 which has stricter SQL modes by default
    - Throw an incorrect usage notice when the query argument of wpdb::prepare()
      does not include a placeholder.
    - When the MySQL server has “gone away,” attempt to reconnect and retry the 
      query.
 * Don’t extend wpdb anymore to be on the safe side
 * Works with socket connections
 * More abstraction from the main db class to our interface.
 * Added a banner image for WordPress.org. Thanks to Marcel van der Horst

#### 1.7 (2014-01-30)

 * Synced with trunk to Changeset 25703
 * Works when plugins folder has been changed
 * Added network support
 * Security enhanchement when using a network installation
 * Updated readme

#### 1.6 (2013-09-18)

 * Fix returning incorrect number of rows for some queries. Props markmont
 * Add error_handler
 * Trowing doing_it_wrong message for all mysql_* functions

#### 1.5 (2013-08-04)

 * Fix dbDelta() to create tables when the tables do not exists
 * Fix fatal error when database can’t get selected by PDO
 * Fix notices when using MySQLi query() when $this->result isn’t an object
 * When database can’t get selected show the default message instead of installation
   screen

#### 1.4 (2013-08-02)

 * Fix notices due changes in WordPress 3.6.
 * Add SSL support. Props hypertextranch.

#### 1.3 (2013-07-09)

 * Show install button when db.php is different.
 * Don’t show remove button when mysql extension isn’t installed.
 * Compatibility fixes for unit tests.

#### 1.2 (2013-06-30)

 * Added emergency override.
 * Updated readme.

#### 1.1 ( 2013-06-28 )

 * Fixes for MySQLi driver, PDO driver.
 * Uses WP_Filesystem for writing / removing db.php when possible.
 * Added deactivate / uninstall code.

#### 1.0 ( 2013-06-28 )

 * First version that supports PDO and MySQLi. Props kurtpayne and scribu.

## メタ

 *  バージョン **2.1.0**
 *  最終更新日 **10年前**
 *  有効インストール数 **60+**
 *  WordPress バージョン ** 4.2.0またはそれ以降 **
 *  検証済み最新バージョン: **4.4.0**
 *  言語
 * [English (US)](https://wordpress.org/plugins/wp-db-driver/)
 * タグ
 * [backend](https://ja.wordpress.org/plugins/tags/backend/)[database](https://ja.wordpress.org/plugins/tags/database/)
   [mysql](https://ja.wordpress.org/plugins/tags/mysql/)[PDO](https://ja.wordpress.org/plugins/tags/pdo/)
 *  [詳細を表示](https://ja.wordpress.org/plugins/wp-db-driver/advanced/)

## 評価

 5つ星中5つ星

 *  [  7 5-星レビュー     ](https://wordpress.org/support/plugin/wp-db-driver/reviews/?filter=5)
 *  [  0 4-星レビュー     ](https://wordpress.org/support/plugin/wp-db-driver/reviews/?filter=4)
 *  [  0 3-星レビュー     ](https://wordpress.org/support/plugin/wp-db-driver/reviews/?filter=3)
 *  [  0 2-星レビュー     ](https://wordpress.org/support/plugin/wp-db-driver/reviews/?filter=2)
 *  [  0 1-星レビュー     ](https://wordpress.org/support/plugin/wp-db-driver/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/wp-db-driver/reviews/#new-post)

[すべてのレビューを見る](https://wordpress.org/support/plugin/wp-db-driver/reviews/)

## 貢献者

 *   [ Marko Heijnen ](https://profiles.wordpress.org/markoheijnen/)
 *   [ Kurt Payne ](https://profiles.wordpress.org/kurtpayne/)

## サポート

意見や質問がありますか ?

 [サポートフォーラムを表示](https://wordpress.org/support/plugin/wp-db-driver/)

## 寄付

このプラグインが今後も改善できるよう応援しませんか ?

 [ このプラグインに寄付 ](https://markoheijnen.com/donate)