Wp Config.php May 2026

| Do ✅ | Don't ❌ | |-------|---------| | Set file permissions to 600 or 640 | Leave it readable by everyone (644 or 666) | | Move it one directory above web root if possible | Commit it to public GitHub repos | | Use unique, long salts from WordPress.org salt generator | Hardcode credentials in multiple places | | Keep a secure backup with credentials | Edit it with plain-text-unaware editors that add BOM |

define( 'WP_POST_REVISIONS', false );
// Or limit to 3 revisions:
define( 'WP_POST_REVISIONS', 3 );

To understand the power of wp-config.php, one must understand the WordPress loading sequence. When a user visits a WordPress site, the server executes index.php, which loads wp-blog-header.php. This immediately attempts to locate wp-config.php.

WordPress searches for the file in the following order:

If the file is not found, WordPress triggers the installation process (famous "5-minute install") to generate it. wp config.php

Technical Note: Placing wp-config.php one directory above the web root (public_html) is a security best practice. If the web server configuration fails and exposes PHP files as plain text, the database credentials remain outside the publicly accessible web folder.

A typical wp-config.php includes:

When you install WordPress, wp-config.php is one of the most critical files in your directory structure. It acts as the bridge between your website files and your database. Without it, WordPress simply cannot function. | Do ✅ | Don't ❌ | |-------|---------|

While the file is automatically generated during installation, manually editing it allows you to unlock powerful features, troubleshoot errors, and significantly harden your site’s security.

Here is everything you need to know about mastering wp-config.php.

If you want, I can:

Which of those would you like next?

At the very bottom of your wp-config.php file, you will see this comment:

/* That's all, stop editing! Happy publishing. */

Anything below this line is typically used by WordPress core. Do not add custom code here. Always insert your tweaks above this line, but below the database settings. To understand the power of wp-config