Database Connection Error in WordPress

Description
The website shows "Error Establishing a Database Connection."

Causes
Incorrect database credentials in wp-config.php.
Corrupted database.
Database server is down.

Solution

• Verify Database Credentials: Check the wp-config.php file for the correct:

define('DB_NAME', 'your_database_name');
define('DB_USER', 'your_username');
define('DB_PASSWORD', 'your_password');
define('DB_HOST', 'localhost');

• Repair the Database: Add the following to wp-config.php and visit yourwebsite.com/wp-admin/maint/repair.php:

define('WP_ALLOW_REPAIR', true);

• Check Server Status: Ensure the database server is running.

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