Title: Developer Loggers for Simple History
Author: Pär Thernström
Published: <strong>දෙසැම්බර් 5, 2015</strong>
Last modified: සැප්තැම්බර් 15, 2025

---

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This plugin **hasn’t been tested with the latest 3 major releases of WordPress**.
It may no longer be maintained or supported and may have compatibility issues when
used with more recent versions of WordPress.

![](https://s.w.org/plugins/geopattern-icon/developer-loggers-for-simple-history.
svg)

# Developer Loggers for Simple History

 By [Pär Thernström](https://profiles.wordpress.org/eskapism/)

[Download](https://downloads.wordpress.org/plugin/developer-loggers-for-simple-history.0.5.1.zip)

 * [Details](https://si.wordpress.org/plugins/developer-loggers-for-simple-history/#description)
 * [Reviews](https://si.wordpress.org/plugins/developer-loggers-for-simple-history/#reviews)
 * [Development](https://si.wordpress.org/plugins/developer-loggers-for-simple-history/#developers)

 [Support](https://wordpress.org/support/plugin/developer-loggers-for-simple-history/)

## Description

Bring more loggers to [WordPress user history plugin Simple History](https://simple-history.com).

That are useful for developers during development of a site or to maintain a live
site.

### Important

Please note that this plugin is no longer actively maintained and only receives 
security fixes.

### Modern and up to date alternatives

For an up to date alternative please see the [Debug & Monitor add-on](https://simple-history.com/add-ons/debug-and-monitor/)
which logs WP REST API requests, sent emails, HTTP API requests, and WP cron jobs.

### Get more features with Simple History Premium

Need advanced WordPress audit logging capabilities? Simple History Premium extends
your site monitoring with powerful features:

**Enhanced WordPress Activity Logging:**

 * **Advanced Analytics Dashboard** – Comprehensive stats and visual activity tracking
 * **Custom Event Logging** – Add manual entries and notifications to your audit
   trail
 * **Stealth Mode** – Control user access with granular permissions
 * **Flexible Log Retention** – Configure automatic cleanup or keep logs indefinitely
 * **Data Export Tools** – Export logs in CSV/JSON format for analysis
 * **Security Features** – IP anonymization and login attempt location tracking

[» **Get Simple History Premium**](https://simple-history.com/premium/)

### Included loggers and plugins

**Post to Slack**

All your events is posted to a [Slack](https://slack.com/) channel of your choice,
using an [incoming webhook](https://api.slack.com/incoming-webhooks). Yes, with 
this plugin enabled
 there is no need what so ever to ever leave Slack to see what’s
happening on your site or the site of your clients or… well, on any site where you
have Simple Histor and this plugin enabled.

**WP_Mail-logger**

See all mails sent with wp_mail(), no matter what the recipient address is.
 changelog

**404 logger**

View page visits that load the 404 template.

**JavaScript error logger**

See what JavaScript errors users that visit your site is getting.

**SystemLog logger**

Log all messages from Simple History to the syslog on the server. With this logger
enabled there is no need to use the beautiful GUI of Simple History ;).

**HTTP API logger**

Log all usage of HTTP calls from functions like wp_remote_post() and wp_remote_get().

You can the URL requested, the arguments posted and the full returned result, including
server headers.

The time for the request to complete is also logged. Great for debugging!

## Screenshots

 * [[
 * Enable the loggers you want in Settings » Simple History » Developer loggers.
 * [[
 * Example output of the WordPress Cron debug logger.
 * [[
 * Example output of the WPMail logger. You can see the subject, who the mail is
   sent to, and the contents of the body.
 * [[
 * Example output form the HTTP API logger. View method and target URL.
 * [[
 * Details from the HTTP API logger. Even more details here, like all the headers
   in the response and also the full response.
 * [[
 * Example output from the WordPress post to Slack Logger. Here you can see me failing
   to login, then succeeding to login, updating a plugin, and finally I log out.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Developer Loggers for Simple History” is open source software. The following people
have contributed to this plugin.

Contributors

 *   [ Pär Thernström ](https://profiles.wordpress.org/eskapism/)

[Translate “Developer Loggers for Simple History” into your language.](https://translate.wordpress.org/projects/wp-plugins/developer-loggers-for-simple-history)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/developer-loggers-for-simple-history/),
check out the [SVN repository](https://plugins.svn.wordpress.org/developer-loggers-for-simple-history/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/developer-loggers-for-simple-history/)
by [RSS](https://plugins.trac.wordpress.org/log/developer-loggers-for-simple-history/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

### 0.5.1 (September 2025)

 * Security fix: Fixed Local File Inclusion vulnerability (CVE-2025-10050) by adding
   proper sanitization to logger slug parameters. Thanks to Jonas Benjamin Friedli
   for responsible disclosure via Wordfence.

### 0.5 (November 2016)

 * Add notice in admin that [Simple History](https://simple-history.com) must be
   installed and activated to use this plugin.
 * Add some very basic Travis CI tests, so the plugin is less likely to cause any
   obvious errors.
 * The Available Updates Logger has now moved to the main Simple History plugin,
   because it’s useful for most users and not only admins.
 * Added filter `simple_history/developer_loggers/enabled_loggers` to modify what
   plugins are enabled.
 * Added filter `simple_history/developer_loggers/slackit/settings` to modify the
   settings of the Slackit logger.
 * Added `examples.php` with some examples of filter usage.

### 0.4.1 (August 2016)

 * Check that the `sys_getloadavg()` exists before trying to use. Could cause error
   on Windows.

### 0.4 (August 2016)

 * Logger for Limit Logins Attempts has moved to Simple History, so more users can
   benefit from it.
 * When a plugin update is found: use the english name for the plugin, instead of
   the translated name.

### 0.3.4 (June 2016)

 * Bump up requirement to 5.4 because I’m to tired to write code for 5.3

### 0.3.3 (June 2016)

 * Fixed notice warning in post to Slack
 * Add error message if not running PHP 5.3 or higher
 * Change unit in HTTP API message from milliseconds to seconds

### 0.3.2 (May 2016)

 * Added: Logger HTTP API Logger that logs all GET and POST requests made using 
   for example `wp_remote_get()` and `wp_remote_post()`.
 * Fixed: The logger for available updates could throw a fatal error on the plugin
   install screen. Hopefully fixed now, and if
    then it fixes https://github.com/
   bonny/Developer-Loggers-for-Simple-History/issues/1 (the very first issue for
   this plugin! 🎉).

### 0.3.1 (March 2016)

 * Fixed: Function `__return_empty_string` is not called `_return_empty_string`…
 * Fixed: Undefined notice for `$initiator_text` in the post to Slack plugin

### 0.3 (February 2016)

 * Added: New plugin: Slack! Yes, now all your logged events can be posted to a 
   Slack channel of your choice.
 * Added: Actions `simple_history/developer_loggers/before_plugins_table` and `simple_history/
   developer_loggers/before_plugins_table`.

### 0.2 (December 2015)

 * Changes to Limit Login Attempts.

### 0.1 (December 2015)

 * First public version. Enjoy!

## Meta

 *  Version **0.5.1**
 *  Last updated **මාස 7ක් ago**
 *  Active installations **400+**
 *  WordPress version ** 4.4 or higher **
 *  Tested up to **6.4.8**
 *  Language
 * [English (US)](https://wordpress.org/plugins/developer-loggers-for-simple-history/)
 * Tags
 * [debugging](https://si.wordpress.org/plugins/tags/debugging/)[developer](https://si.wordpress.org/plugins/tags/developer/)
   [email](https://si.wordpress.org/plugins/tags/email/)[logging](https://si.wordpress.org/plugins/tags/logging/)
   [simple history](https://si.wordpress.org/plugins/tags/simple-history/)
 *  [Advanced View](https://si.wordpress.org/plugins/developer-loggers-for-simple-history/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/developer-loggers-for-simple-history/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/developer-loggers-for-simple-history/reviews/)

## Contributors

 *   [ Pär Thernström ](https://profiles.wordpress.org/eskapism/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/developer-loggers-for-simple-history/)

## Donate

Would you like to support the advancement of this plugin?

 [ Donate to this plugin ](https://simple-history.com/sponsor/)