wordpress database

If you have WordPress Multisite Error Establishing Database Connection on your WordPress website, it is a fatal error.

This WordPress error occurs when WordPress is failed to make a DB connection to the database.

1st check :

`DB_NAME, DB_USER, DB_PASSWORD, B_HOST`

& each site’s .htaccess entries if it defines any site name statically..

2nd check : `wp_config file –

define('MULTISITE', true);` 
define('COOKIE_DOMAIN', $_SERVER['HTTP_HOST'] );

Once u set this multisite config, you must reload your site & login once to wp-admin..

3rd check : WP_DB tables >>

'wp_blogs' >> 'path' to "/"`
'wp_site’  >>  'path' to "/"

(dont mention any real path here, so it will take it dynamically)

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