How to Fix “Error Establishing a Database Connection in WordPress”

Inspect the wp-config.php File of your WordPress website

Every WordPress installation’s configuration file contains the database settings. It may be found in the root directory of your website and is called wp-config.php.

• Log in to the website directories using FTP or the hosting control panel to inspect the file. Go to Site Tools > Site > File Manager if you are a SiteGround user.
• Every website has a root folder, which is located at yourdomain.com/public_html. In our example, the folder is located at sg-testing.com/public_html because the website’s name is sg-testing.com.
• Keep a backup of the file before making any modifications. To accomplish this, right-click the file, choose Copy, and give the copied file the new name wp-config-backup.php.

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