WP_DEBUG

Lesson in the WordPress Roadmap · Stage 20: Backups & Recovery

Last updated 14 September 2026

What is WP_DEBUG?

WP_DEBUG is a PHP constant in WordPress that, when enabled, activates the debugging mode. This mode displays PHP errors, notices, and warnings on your website, which are normally hidden. It's a valuable tool for developers to identify and fix issues within their WordPress themes, plugins, or core installation.

Study this in the interactive course See the whole WordPress roadmap

Free resources to learn WP_DEBUG

Official docsDebugging in WordPress
ArticleA Complete Guide to WordPress Debugging (Enable WP_DEBUG + Other Tools)
ArticleHow To Enable WP_DEBUG Mode In WordPress
VideoDebugging in WordPress
VideoThe built-in WordPress debugging options

WP_DEBUG: common questions

Can I learn WP_DEBUG in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain WP_DEBUG in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this WP_DEBUG tutorial for beginners?

It is lesson 89 of 115 in the free WordPress roadmap, in stage 20, Backups & Recovery. If you are new to WordPress, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.