How to Fix the Error Establishing a Database Connection :

If you have been surfing the web for a while, you have at least seen this error a few times.
Error Establishing a Database Connection is one of those curses that could be caused by many reasons.
As a WordPress beginner, this could be awfully frustrating specially when it happened on its own without you changing anything.

Note: Before you make any database changes, make sure you have backup of your database file and WP-config.PHP file.

Please follow the below steps :

1 Log in to cPanel

2 Go to the WordPress directory and then click on WP-config.php.

3 As I mentioned, WordPress uses a specific username and password to connect to the database which looks like :

define(‘DB_NAME’, ‘some_db’);
define(‘DB_USER’, ‘some_username’);
define(‘DB_PASSWORD’, ‘some_pass’);
define(‘DB_HOST’, ‘localhost’);

4 Make sure username and password must match with the credentials you created in MySQL Database in cPanel.

Once the username and password will same in wp-config.php script and MySQL Database section in cpanel Error will resolve.

Some More Solutions easy one to check if still you face the issue ;

1 Go to MySQL database Option in Cpanel and then choose the database and click on Repair Database.

2 You can also rename the plugin and theme folder if the issue continues.

3 Final Solution download the wp-config.php from the WordPress site which is mentioned below and update the username password and database name .

Download WordPress default files :

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