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

---

搜索插件

![](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/)

[下载](https://downloads.wordpress.org/plugin/wp-debugging.2.12.2.zip)

 * [详情](https://cn.wordpress.org/plugins/wp-debugging/#description)
 * [评价](https://cn.wordpress.org/plugins/wp-debugging/#reviews)
 * [开发进展](https://cn.wordpress.org/plugins/wp-debugging/#developers)

 [支持](https://wordpress.org/support/plugin/wp-debugging/)

## 描述

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).

## 屏幕截图

[⌊Settings Screen⌉⌊Settings Screen⌉[

Settings Screen

## 评价

![](https://secure.gravatar.com/avatar/cb9358ffd8587c3498800d9c404ab24e3f8cf81596d7038125e10a65c76226de?
s=60&d=retro&r=g)

### 󠀁[Works perfectly with WP 7.0 🥳](https://wordpress.org/support/topic/works-perfectly-with-wp-7-0-%f0%9f%a5%b3/)󠁿

 [Bjarne Oldrup](https://profiles.wordpress.org/oldrup/) 2026 年 6 月 8 日

Don’t read too much into that “tested up to” tag. My practical tests, including 
tests with the official Plugin Checker, watching the console, in environment with
quite strict cross-origin rules etc., WP Debugging is still the one simple debug
log enabler and watcher, that just works, also with WordPress 7.0 It’s very basic,
indeed, and that is a good thing. The last thing you want, when debugging WordPress,
is for the debug plugin itself to throw a bunch of errors or load a lot of external
resources affecting performance. So still, highly recommended.

![](https://secure.gravatar.com/avatar/eb5de3db5bfc8ef5845b4173265bf3d079f460fb99c9e346380b04d07bea8f05?
s=60&d=retro&r=g)

### 󠀁[Absolutely essential for debugging – saved me countless times!](https://wordpress.org/support/topic/absolutely-essential-for-debugging-saved-me-countless-times/)󠁿

 [Mehraz Morshed](https://profiles.wordpress.org/mehrazmorshed/) 2026 年 4 月 18
日

I’ve been using the WP Debugging plugin since 2024, and it has been a lifesaver.
The error log feature alone helped me track down several issues that would have 
taken hours to find manually. The fact that it integrates with Query Monitor is 
a nice bonus too. If you do any WordPress development or troubleshooting, just install
this plugin. Five stars, no hesitation.

![](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.

 [ 阅读所有21条评价 ](https://wordpress.org/support/plugin/wp-debugging/reviews/)

## 贡献者及开发者

「WP Debugging」是开源软件。 以下人员对此插件做出了贡献。

贡献者

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

「WP Debugging」插件已被翻译至 10 种本地化语言。 感谢[所有译者](https://translate.wordpress.org/projects/wp-plugins/wp-debugging/contributors)
为本插件所做的贡献。

[帮助将「WP Debugging」翻译成简体中文。](https://translate.wordpress.org/projects/wp-plugins/wp-debugging)

### 对开发感兴趣吗?

您可以[浏览代码](https://plugins.trac.wordpress.org/browser/wp-debugging/)，查看
[SVN仓库](https://plugins.svn.wordpress.org/wp-debugging/)，或通过[RSS](https://plugins.trac.wordpress.org/log/wp-debugging/?limit=100&mode=stop_on_copy&format=rss)
订阅[开发日志](https://plugins.trac.wordpress.org/log/wp-debugging/)。

## 更新日志

#### 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

## 额外信息

 *  版本 **2.12.2**
 *  最后更新：**2 年前**
 *  活跃安装数量 **10,000+**
 *  WordPress 版本 ** 5.2 或更高版本 **
 *  已测试的最高版本为 **6.8.5**
 *  PHP 版本 ** 5.6 或更高版本 **
 *  语言
 * [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/) 、 [Italian](https://it.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/)
   和 [Swedish](https://sv.wordpress.org/plugins/wp-debugging/).
 *  [翻译成简体中文](https://translate.wordpress.org/projects/wp-plugins/wp-debugging)
 * 标签
 * [debug](https://cn.wordpress.org/plugins/tags/debug/)[support](https://cn.wordpress.org/plugins/tags/support/)
   [wp-config](https://cn.wordpress.org/plugins/tags/wp-config/)
 *  [高级视图](https://cn.wordpress.org/plugins/wp-debugging/advanced/)

## 评级

 5 星（最高 5 星）。

 *  [  21 条 5 星评价     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=5)
 *  [  0 条 4 星评价     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=4)
 *  [  0 条 3 星评价     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=3)
 *  [  0 条 2 星评价     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=2)
 *  [  0 条 1 星评价     ](https://wordpress.org/support/plugin/wp-debugging/reviews/?filter=1)

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

[查看全部评论](https://wordpress.org/support/plugin/wp-debugging/reviews/)

## 贡献者

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

## 支持

最近两个月解决的问题：

     总计 1，已解决 0

 [查看支持论坛](https://wordpress.org/support/plugin/wp-debugging/)

## 捐助

您愿意支持这个插件的发展吗?

 [ 捐助此插件 ](https://thefragens.com/git-updater-donate)