WordPress File Structure

WordPress is built using PHP, HTML, CSS, JavaScript and a database. Its files and folders work together to display pages, manage content, load themes and provide additional functionality through plugins.

1. What Is WordPress File Structure?

WordPress file structure is the organization of files and directories that make a WordPress website work. Each folder contains files for specific responsibilities.

2. Main WordPress Directory Structure

A standard WordPress installation contains several important folders and files. Your installation may include additional files depending on the hosting environment, plugins and configuration.

wordpress/
│
├── wp-admin/
│
├── wp-content/
│   ├── plugins/
│   ├── themes/
│   ├── uploads/
│   └── languages/
│
├── wp-includes/
│
├── index.php
├── wp-config.php
├── wp-load.php
├── wp-login.php
├── wp-settings.php
├── wp-blog-header.php
├── wp-cron.php
├── xmlrpc.php
├── readme.html
└── license.txt

3. The wp-admin Folder

The wp-admin directory contains many files used by the WordPress administration area. These files support dashboard operations such as managing posts, pages, users and settings.

4. The wp-content Folder

The wp-content directory is one of the most important directories for website customization. It normally contains themes, plugins and uploaded media.

wp-content/
│
├── plugins/
│   ├── example-plugin/
│   └── another-plugin/
│
├── themes/
│   ├── example-theme/
│   └── example-child-theme/
│
├── uploads/
│   ├── 2026/
│   │   ├── 01/
│   │   └── 02/
│
└── languages/

5. The plugins Folder

The wp-content/plugins/ directory stores plugin files. Plugins extend WordPress with additional features.

6. The themes Folder

The wp-content/themes/ directory stores WordPress theme files. A theme controls much of the website's presentation, including templates, styles and design features.

my-business-theme/
│
├── style.css
├── functions.php
├── index.php
├── header.php
├── footer.php
├── single.php
├── page.php
└── assets/
    ├── css/
    ├── js/
    └── images/

7. The uploads Folder

The wp-content/uploads/ directory commonly stores media uploaded through the WordPress Media Library, such as images, PDFs and other supported files.

uploads/
│
├── 2026/
│   ├── 01/
│   │   ├── company-logo.png
│   │   └── course-image.jpg
│   │
│   └── 02/
│       └── brochure.pdf

8. The wp-includes Folder

The wp-includes directory contains many WordPress core libraries, functions and classes used throughout the system.

9. Important WordPress Root Files

10. Understanding wp-config.php

The wp-config.php file contains important configuration values for WordPress. It commonly includes database connection details and security keys.

<?php

define('DB_NAME', 'wordpress_db');
define('DB_USER', 'your_database_user');
define('DB_PASSWORD', 'your_database_password');
define('DB_HOST', 'localhost');

// Other WordPress configuration values follow.

11. Where Is WordPress Content Stored?

WordPress uses both files and a database. They serve different purposes.

For a complete backup, you generally need both the relevant WordPress files and a database backup. Back up any additional external storage or configuration your website depends on.

12. How to Access WordPress Files

The method depends on whether WordPress runs on your computer or on a hosting server.

C:\xampp\htdocs\wordpress\

13. Safe WordPress File Management

14. Practical Assignment

Lesson Summary

• wp-admin supports the administration area.
• wp-content contains themes, plugins and uploads.
• wp-includes contains WordPress core libraries and functions.
• wp-config.php contains important site configuration.
• The filesystem stores themes, plugins and media files.
• The database stores posts, pages, users and other site data.
• Safe backups include both files and the database.
• Use supported customization methods rather than editing core files.

Lesson 36 Quiz

Choose the correct answer for each question.