Title: WP Debugging
Author: Andy Fragen
Published: <strong>2019年2月3日</strong>
Last modified: 2024年12月2日

---

プラグインを検索

![](https://ps.w.org/wp-debugging/assets/banner-772x250.png?rev=2552243)

![](https://ps.w.org/wp-debugging/assets/icon.svg?rev=2842498)

# WP Debugging

 作者: [Andy Fragen](https://profiles.wordpress.org/afragen/)

[ダウンロード](https://downloads.wordpress.org/plugin/wp-debugging.2.12.2.zip)

 * [詳細](https://ja.wordpress.org/plugins/wp-debugging/#description)
 * [レビュー](https://ja.wordpress.org/plugins/wp-debugging/#reviews)
 * [開発](https://ja.wordpress.org/plugins/wp-debugging/#developers)

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

## 説明

This plugin sets the following debug constants in `wp-config.php` on plugin activation
and removes them on plugin deactivation. Any errors will result in a PHP Exception
being thrown. Debug constants per [Debugging in WordPress](https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/).

Default settings:

    ```
    define( 'WP_DEBUG_LOG', true );
    define( 'SCRIPT_DEBUG', true );
    define( 'SAVEQUERIES', true );
    ```

 
 @ini_set( ‘display_errors’, 1 ); is set when the plugin is active. `WP_DEBUG`
is set to true when the plugin is first run, thereafter it can be turned off in 
the Settings.

The Settings page allows the user to set the following.

    ```
    define( 'WP_DEBUG', true ); // Default on initial plugin installation.
    define( 'WP_DEBUG_DISPLAY', false ); // Default when not declared is true.
    define( 'WP_DISABLE_FATAL_ERROR_HANDLER', true ); // WordPress 5.2 WSOD Override.
    ```

When the plugin is deactivated best efforts are made to re-add pre-existing constants
to their former state. When the plugin is activated the default settings and any
saved settings are restored.

This plugin uses the [wp-cli/wp-config-transformer](https://github.com/wp-cli/wp-config-transformer)
command for writing constants to `wp-config.php`.

[Debug Quick Look](https://github.com/norcross/debug-quick-look) from Andrew Norcross
is included with this plugin to assist in reading the debug.log file. If you already
have this plugin installed you should delete it when WP Debugging is not active.

[Query Monitor](https://wordpress.org/plugins/query-monitor/) and [Debug Bar](https://wordpress.org/plugins/debug-bar/)
plugins are optional dependencies to aid in debugging and troubleshooting. The notice
for installation will recur 45 days after being dismissed.

If you have a non-standard location for your `wp-config.php` file you can use the
filter `wp_debugging_config_path` to return the file path for your installation.

The filter `wp_debugging_add_constants` allows the user to add constants to `wp-
config.php`.

The filter returns an array where the key is the name of the constant and the value
is an array of data containing the value as a string and a boolean to indicate whether
or not the value should be passed without quotes.

    ```
    $my_constants = [
        'my_test_constant' =>
        [
            'value' => 'abc123',
            'raw' => false,
        ],
        'another_test_constant' => [ 'value' => 'true' ],
    ];
    ```

The `value` option contains the constant’s value as a string.

The `raw` option means that instead of placing the value inside the config as a 
string it will become unquoted. The default is `true`. Set as `false` for non-boolean
values.

Example:

    ```
    add_filter(
        'wp_debugging_add_constants',
        function( $added_constants ) {
            $my_constants = [
                'my_test_constant'      => [
                    'value' => '124xyz',
                    'raw'   => false,
                ],
                'another_test_constant' => [ 'value' => 'true' ],
            ];
            return array_merge( $added_constants, $my_constants );
        },
        10,
        1
    );
    ```

This will create the following constants.

    ```
    define( 'MY_TEST_CONSTANT', '124xyz' );
    define( 'ANOTHER_TEST_CONSTANT', true );
    ```

### Development

PRs are welcome against the [develop branch on GitHub](https://github.com/afragen/wp-debugging).

## スクリーンショット

 * [[
 * Settings Screen

## 評価

![](https://secure.gravatar.com/avatar/75af23b76161bec953b27cab749783845b746fe40ca95f323c59f57a7c745006?
s=60&d=retro&r=g)

### 󠀁[Perfect](https://wordpress.org/support/topic/perfect-10572/)󠁿

 [coriolis_too](https://profiles.wordpress.org/coriolis_too/) 2024年11月9日

Simple and easy to use. Does what is says

![](https://secure.gravatar.com/avatar/af5d6597994791593777acc5b0ed8a154aeebf837af76c91ce0d519ae769a4bb?
s=60&d=retro&r=g)

### 󠀁[Another great debugging plugin](https://wordpress.org/support/topic/another-great-debugging-plugin/)󠁿

 [Jamie](https://profiles.wordpress.org/codente/) 2024年2月23日

Yet another one of your plugins that I love and use all the time! Thank you. (Side
note: is there a place to buy you a coffee or donate for your time?)

![](https://secure.gravatar.com/avatar/c83b9f1dda7f2dbed5a6c61d38e65c84b3af2c1b6a79a722d0f65f6894a700b3?
s=60&d=retro&r=g)

### 󠀁[Makes debugging so much easier.](https://wordpress.org/support/topic/makes-debugging-so-much-easier/)󠁿

 [ld2digital](https://profiles.wordpress.org/ld2digital/) 2023年12月29日

I use this on all of my sites to streamline debugging. It saves so much time and
hassle.

![](https://secure.gravatar.com/avatar/e53adb8dbefa0ec8b6d55b4faf812f5d3d88b334970761ef15d46eac80edb920?
s=60&d=retro&r=g)

### 󠀁[Very useful!](https://wordpress.org/support/topic/very-useful-3391/)󠁿

 [Pulak Ahmed](https://profiles.wordpress.org/pulak00/) 2023年12月6日

Very helpful tool for debugging the conflicts.

![](https://secure.gravatar.com/avatar/ea10706e217b842ead8d4c0f1aa56d2fd6abd535266f51fea0c21b6b34b687d2?
s=60&d=retro&r=g)

### 󠀁[Helpful, light-weight plugin](https://wordpress.org/support/topic/helpful-light-weight-plugin-2/)󠁿

 [pic2click](https://profiles.wordpress.org/pic2click/) 2023年11月13日

This little plugin was a lifesaver for a site of ours, self-hosted via docker. The
implementation left us with a curious problem … some configuration someplace somewhere
other than the standard lines in wp-config.php was overriding our WP_DEBUG setting.
This plugin solved that.

![](https://secure.gravatar.com/avatar/9038fefd4186ca83516f213a9f8a94fac14c784244d7018c6bad9752e4e6eb92?
s=60&d=retro&r=g)

### 󠀁[Perfect + nice + awesome plugins…](https://wordpress.org/support/topic/perfect-nice-awesome-plugins/)󠁿

 [dglite](https://profiles.wordpress.org/dglite/) 2023年9月18日

Perfect + nice + awesome plugins…

 [ 18件のレビューをすべて表示 ](https://wordpress.org/support/plugin/wp-debugging/reviews/)

## 貢献者と開発者

WP Debugging 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

 *   [ Andy Fragen ](https://profiles.wordpress.org/afragen/)

“WP Debugging” は9ロケールに翻訳されています。 [翻訳者](https://translate.wordpress.org/projects/wp-plugins/wp-debugging/contributors)
のみなさん、翻訳へのご協力ありがとうございます。

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

### 開発に興味がありますか ?

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

## 変更履歴

#### 2.12.2 / 2024-12-02

 * add GA to generate POT
 * update for PCP

#### 2.12.1 / 2024-11-08

 * move `register_activation_hook` and `register_deactivation_hook` up the chain

#### 2.12.0 / 2024-11-01

 * exit early(ish) if not on WP Debugging settings page
 * composer update
 * remove `load_plugin_textdomain()`

#### 2.11.24 / 2024-04-29

 * update link to Debugging in WordPress, thanks @tobifjellner
 * cast variable to array in `Bootstrap::deactivate()` fix for PHP 8.3

#### 2.11.23 / 2024-03-04

 * composer update
 * WPCS updates

#### 2.11.22 / 2023-05-31 🎂

 * update `afragen/wp-dismiss-notice`

#### 2.11.21 / 2023-04-29

 * update `afragen/wp-dismiss-notice`
 * update Debug Quick Look

#### 2.11.18, 2.11.19, 2.11.20 / 2023-02-07

 * composer update

#### 2.11.17 / 2023-01-27

 * updated link to _Debugging in WordPress_ and improved text for translators
 * composer update

#### 2.11.16 / 2023-01-19

 * composer update

#### 2.11.15 / 2023-01-02

 * composer update

#### 2.11.14 / 2022-07-15

 * composer update

#### 2.11.13 / 2022-06-23

 * make anchor `preg_match` more greedy

#### 2.11.12 / 2022-05-29

 * update to latest `afragen/debug-quick-look`

#### 2.11.11 / 2022–5-16

 * update `wp-dismiss-notice` with transient and only poll `wp_remote_get()` weekly

#### 2.11.10 / 2022-05-10

 * use `sanitize_key()` for nonces
 * composer update

#### 2.11.9 / 2022-02-05

 * composer update

#### 2.11.8 / 2022-01-24

 * load call to `WP_Dependency_Installer()` in `plugins_loaded` hook to avoid loading`
   pluggable.php`.
 * update `WP_Dependency_Installer`

#### 2.11.7 / 2022-01-18

 * fix logic in verify nonce conditional

#### 2.11.6 /2022-01-18

 * proper nonce verification
 * composer updates

#### 2.11.5 / 2022-01-11

 * I messed up the release 🤦‍♂️

#### 2.11.4 / 2022-01-10

 * composer updates

#### 2.11.3 / 2021-12-19

 * more fixes via composer update

#### 2.11.2 / 2021-09-24

 * composer update, cause of course I needed to fix something

#### 2.11.1 / 2021-09-24

 * init in `plugins_loaded` hook
 * composer update

#### 2.11.0 / 2021-09-23

 * fix security issue for capabilities check, possible CSRF, and nonce checks.

#### 2.10.2 / 2021-09-04

 * only use `esc_attr_e` for translating strings

#### 2.10.1 / 2021-07-23

 * fix PHP Notice, `Settings:line 68`
 * update Debug Quick Look admin bar menu for mobile

#### 2.10.0 / 2021-06-30

 * update Debug Quick Look to show menu on mobile

#### 2.9.3 / 2021-06-22

 * update WPConfigTransformer to use alternate anchor if default not present
 * add @10up GitHub Actions for WordPress svn integration

#### 2.9.1 / 2020-11-17

 * update `wp-dependency-installer` library
 * update `wp-cli/wp-config-transformer`
 * comment out quote normalization in `set_pre_activation_constants()`, not sure
   why I did that but it can cause problems [#10](https://github.com/afragen/wp-debugging/issues/10)

#### 2.9.0 / 2020-08-15

 * use try/catch around use of `WPConfigTransformer` object

#### 2.8.0 / 2020-08-01

 * exit if called directly
 * NB: I have seen the `WPConfigTransformer` Exception error live. The issue seems
   to be that a `file_get_contents()` on the `wp-config.php` file path, at random
   times, returns an empty value. I’m done chasing this random error in `wp-cli/
   wp-config-transformer`. Modified version of `wp-cli/wp-config-transformer` present

#### 2.7.2 / 2020-06-01

 * test `wp-config.php` everywhere, still occasional WSOD reports.

#### 2.7.1 / 2020-5-15

 * return early if `wp-config.php` is empty before calling `WPConfigTransformer`

#### 2.7.0 / 2020-04-30

 * start loading in `init` hook
 * run `process_filter_constants()` as chained method in `Bootstrap`

#### 2.6.1 / 2020-03-28

 * move `Settings` action link to front
 * change test for `wp-config.php` file empty

#### 2.6.0 / 2020-02-28

 * load autoloader in main file
 * update composer dependencies

#### 2.5.8 / 2019-12-23

 * badly messed up check for empty `wp-config.php`

#### 2.5.7 / 2019-12-20

 * check and exit early if `wp-config.php` is empty
 * return empty array for the above exit

#### 2.5.6 / 2019-11-02

 * early exit if `wp-config.php` not set in specific functions

#### 2.5.5 / 2019-09-17

 * update composer.json for wp-dependency-installer update, now requires at least
   PHP 5.6 for spread operator
 * composer update

#### 2.5.4 / 2019-04-25

 * added check for writable `wp-config.php`, exit with notice if not found

#### 2.5.3 / 2019-04-01

 * update `Debug Quick Look` to display error log file path

#### 2.5.1 / 2019-04-01

 * updated version of wp-cli/wp-config-transformer

#### 2.5.0 / 2019-03-25

 * added `wp_debugging_add_constants` filter for users to add their own constants

#### 2.4.3 / 2019-03-09

 * missed an output escape

#### 2.4.2 / 2019-02-26

 * add `Domain Path` header

#### 2.4.1 / 2019-02-10

 * refactor set/restore pre-activation constants

#### 2.4.0 / 2019-02-06

 * save pre-activation constants for re-installation on deactivation ( say that 
   5x fast )

#### 2.3.0 / 2019-02-04

 * look for `wp-config.php` in directory above `ABSPATH`
 * add filter `wp_debugging_config_path` to set non-standard path to `wp-config.
   php`

#### 2.2.0 / 2019-02-02 🏈

 * initial release on dot org

#### 2.1.1 / 2019-02-01

 * only show WSOD bypass when appropriate
 * update dependencies

#### 2.1.0 / 2019-01-26

 * update Debug Quick Look, minor CSS changes
 * Improve messaging
 * add setting for WP_DISABLE_FATAL_ERROR_HANDLER constant (WSOD)
 * add default setting of WP_DEBUG to true, can be changed

#### 2.0.0 / 2019-01-18

 * total re-write
 * add settings page
 * use `wp-cli/wp-config-transformer` to change `wp-config.php`
 * include `norcross/debug-quick-look` as dependency via composer but use my fork
 * update POT via `composer.json` and wp-cli
 * add image assets

## メタ

 *  バージョン **2.12.2**
 *  最終更新日 **1年前**
 *  有効インストール数 **10,000+**
 *  WordPress バージョン ** 5.2またはそれ以降 **
 *  検証済み最新バージョン: **6.8.5**
 *  PHP バージョン ** 5.6またはそれ以降 **
 *  言語
 * [Chinese (Taiwan)](https://tw.wordpress.org/plugins/wp-debugging/)、[English (Australia)](https://en-au.wordpress.org/plugins/wp-debugging/)、
   [English (US)](https://wordpress.org/plugins/wp-debugging/)、[French (France)](https://fr.wordpress.org/plugins/wp-debugging/)、
   [German](https://de.wordpress.org/plugins/wp-debugging/)、[Japanese](https://ja.wordpress.org/plugins/wp-debugging/)、
   [Portuguese (Portugal)](https://pt.wordpress.org/plugins/wp-debugging/)、[Spanish (Chile)](https://cl.wordpress.org/plugins/wp-debugging/)、
   [Spanish (Spain)](https://es.wordpress.org/plugins/wp-debugging/)、[Swedish](https://sv.wordpress.org/plugins/wp-debugging/).
 *  [プラグインを翻訳](https://translate.wordpress.org/projects/wp-plugins/wp-debugging)
 * タグ
 * [debug](https://ja.wordpress.org/plugins/tags/debug/)[support](https://ja.wordpress.org/plugins/tags/support/)
   [wp-config](https://ja.wordpress.org/plugins/tags/wp-config/)
 *  [詳細を表示](https://ja.wordpress.org/plugins/wp-debugging/advanced/)

## 評価

 5つ星中5つ星

 *  [  19 5-星レビュー     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=5)
 *  [  0 4-星レビュー     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=4)
 *  [  0 3-星レビュー     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=3)
 *  [  0 2-星レビュー     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=2)
 *  [  0 1-星レビュー     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=1)

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

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

## 貢献者

 *   [ Andy Fragen ](https://profiles.wordpress.org/afragen/)

## 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-debugging/)

## 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://thefragens.com/git-updater-donate)