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Debug

Debug

Od SoniNow
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Debug is a development and production tool that helps you find and fix bugs on your WordPress site (including multisite). It gives you a clean admin panel to toggle WordPress’s built-in debug constants, read the error log, and receive instant email notifications when meaningful errors happen — all without editing wp-config.php by hand.

What it does for you

  • One-click debug flags — toggle WP_DEBUG, WP_DEBUG_LOG, WP_DEBUG_DISPLAY, SCRIPT_DEBUG and SAVEQUERIES directly from the settings page.
  • Error log viewer — view, clear and download the tail of your wp-content/debug.log (last 1 MB) right from the admin.
  • Real-time email alerts — get notified when errors and warnings occur, with a throttled, level-filtered handler that ignores deprecation notices and suppressed (@) code.
  • Safe wp-config editing — a timestamped backup is created automatically before every change, with one-click restore if you ever need to roll back.

Why you can trust it

The plugin never lets you download wp-config.php (a common credential leak in older debug plugins). All file access is strictly path-guarded, all admin actions are protected with nonces and capability checks, and backups let you revert any change instantly.

Frequently Asked Questions

Is my wp-config.php safe?

Yes. The plugin creates a timestamped backup of wp-config.php before every change, and the settings page lets you restore any backup with one click. wp-config.php is never downloadable from the browser.

Can I use this on a production site?

Yes — and that’s a core use case. Error notifications only fire for meaningful error levels (errors and warnings), never for deprecation notices. Emails are queued and throttled so a busy site won’t flood your inbox, and WP_DEBUG_DISPLAY is kept off by default so errors are not shown to visitors.

Why am I not getting email notifications?

Make sure Email Notification is enabled and a valid address is set, and that wp_mail() works on your host. Only errors and warnings trigger emails (notices and deprecations are filtered out).

The plugin says wp-config.php is not writable. What do I do?

Check your file permissions. Most hosts run with the web user owning wp-config.php (usually 0644). If the plugin still cannot write it, it shows you the exact code to paste into wp-config.php manually — so you’re never stuck.

What does „Error Log“ show?

It shows the last 1 MB of wp-content/debug.log, so you can inspect recent errors without loading a huge file. You can clear the log or download it as a plain text file.

Does this work on multisite?

Yes. All settings are stored per-site and the wp-config.php edits apply globally, which is the expected behaviour for network-wide debug toggling.

Contacts

For support or the development team of the Debug plugin: https://soninow.com/contact

Obrázky

Debug configuration settings page.
Debug configuration settings page.
Save settings with success message and auto-created wp-config backup notice.
Save settings with success message and auto-created wp-config backup notice.
wp-config.php manual-paste fallback when the file is not writable.
wp-config.php manual-paste fallback when the file is not writable.
Debug log file viewer with clear/download actions.
Debug log file viewer with clear/download actions.
wp-config.php backups list with one-click restore.
wp-config.php backups list with one-click restore.

Inštalácia

  1. Upload the debug folder to /wp-content/plugins/, or install via Plugins Add New in your WordPress admin.
  2. Activate the plugin through the Plugins menu.
  3. Go to Debug Settings and configure your preferences.
  4. Hit Save Changes — a backup of wp-config.php is created automatically.

Note: If wp-config.php is not writable, the plugin will show you the code to paste manually.

Recenzie

Simple & Great Learning Tool

25. marca 2022
It helps get access to a site’s error log, even for lay users without contacting web hosts or filesystem access. Really useful in debugging in support. Also useful as a teaching/learning tool for basic technical debugging too.

Still Works Great on WP 5.8.2

27. novembra 2021
Thank you for this great plugin which saves time on backing up wp-config.php and turning on debug mode. Eliminates mistakes which might otherwise be introduced when manually changing wp-config.php and allows faster debugging.

Still works

11. októbra 2020
Even though updates have been a while (at least at the time of writing this), the plugin still works well and serves its purpose.

Просто ужас, а не плагин

27. februára 2020 1 reply
С активацией плагина перекосило весь сайт окончательно. Не помогло даже его удаление с сайта. Все записи в админке стали из иероглифов. Хорошо, что получилось из резервной копии на хостинге сайт восстановить, а то слало как то очень хреново от увиденного.

Essential part of a debugger’s toolkit

1. decembra 2019 1 reply
This plugin has helped me rescue many client sites when they can’t figure out how to enable WP_DEBUGon their own. I know it hasn’t been updated in forever, but it is still working for me as of WordPress 5.3.
Prečítať všetkých 11 recenzií

Prispievatelia a vývojári

“Debug” je softvér s otvoreným zdrojovým kódom. Do tohto pluginu prispeli nasledujúci ľudia.

Prispievatelia

Preložiť „Debug“ do vašho jazyka.

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Prehľadávajte zdrojový kód, preskúmajte SVN repozitár, alebo sa prihláste na odber vývojárskeho logu cez RSS.

Zoznam zmien

1.14

  • New: full translation support — added languages/debug.pot and load_plugin_textdomain() (fixes Plugin Check missing-translation warning).
  • New: “Send Test Notification” button on the settings page — verify your email alert setup works before relying on it in production.
  • New: error-log viewer auto-refresh toggle (every 5s) for watching logs live.
  • Improved: error handler now registers on plugins_loaded for earlier, wider coverage (catches theme/plugin load-time errors).
  • Improved: wp-config backups are now auto-pruned (keeps the latest 10) so the site root never fills up, and a delete action lets you remove backups individually.
  • Cleanup: removed the last inline script (post-save auto-reload) — the page no longer force-refreshes and wipes admin notices, and the plugin is now 100% CSP-friendly.
  • Fix: wp-config define() editing now tolerates multiline/annotated defines (no more accidental duplicates).
  • Cleanup: README.md is now excluded from the WordPress.org SVN deploy (Plugin Check flagged it as root clutter).
  • Compatibility: tested up to WordPress 7.1.

1.13

  • Security: removed the ability to download wp-config.php (full credential leak). Debug log download now only serves the log via a clean admin-post.php endpoint.
  • Security: added strict path allowlisting + traversal guards to all file reads/writes.
  • Security: automatic timestamped wp-config.php backup before every save + one-click restore UI.
  • Security: error handler now only registers when email notifications are on, filters out deprecation/notice noise, respects error_reporting(), throttles and queues emails, and chains the previous handler.
  • Fix: broken Settings link href (missing closing quote) on the plugin list page.
  • Fix: esc_html_e() misuse replaced with correct escaping.
  • Fix: tolerant, case/format-insensitive regex in debug_add_option — no more duplicate define() creation.
  • Fix: nonce action strings standardized + consistent failure notices.
  • Fix: read tail capped to 1 MB.
  • Improvements: enqueued CSS instead of inline <style> (CSP-friendly), modernized baseline (PHP 7.4+, WP 5.0+), uninstall.php cleanup.

1.12: Apr 1, 2024

  • BugFix: Fix all bug reporting in plugin https://wordpress.org/plugins/plugin-check/.
  • BugFix: Fix duplicate define variable creation error.

1.11: Mar 25, 2024

  • BugFix: Cross Site Request Forgery (CSRF) issue.

1.10: Jun 29, 2022

  • Increase security for direct access of files.

1.9: Dec 15, 2019

  • Compatible with new version.

1.7: Mar 2, 2016

  • BugFix: Display error not required for email notification enable.

1.6: Jan 24, 2016

  • Add: Email Notification Settings on plugin setting page.
  • BugFix: Resolved any user to download debug.log and wp-config.php file. now only super admin can download files.
  • BugFix: resolved error when large debug.log file load on plugin section. now only load 1.4 MB file only from end of file.

1.5: Sept 30, 2015

  • Add: Email Notification Page to Enter Notification email address and email subject.
  • Add: Handle any error and send it to your email address on real time system. (no-email delay).
  • BugFix: Resolved undefined „scrollHeight“ in console log in jQuery. incase of admin debug.log file not exist.

1.4: June 2, 2015

  • BugFix: download wp-config.php file for back-up /Downloads/wp-config.php.exe to /Downloads/wp-config.php.
  • BugFix: download wp-config.php file for back-up /Downloads/debug.log.exe to /Downloads/debug.log.
  • Remove: console.log function from js.
  • Add: Add Setting page link on plugin page.

1.3: March 29, 2015

  • Add: option for download wp-config.php file for back-up.
  • Add: option for download debug.log file.
  • Add: Auto scroll down in debug.log file view in admin panel to see latest error log.

1.2: March 4, 2015

  • Add: script debug option
  • Add: save query debug option
  • Add: debug.log file view and clear option from admin panel

1.1: December 30, 2014

  • Add: Banner at wordpress Community
  • Add: Add change Log Session

1.0

  • Rewrite wp-config.php file with Debug variables.
  • Add: WP_DEBUG, WP_DEBUG_LOG, WP_DEBUG_DISPLAY Functionality.

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Hodnotenia

4.6 z 5 hviezdičiek.

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