How can I completely disable a WordPress installation?

You could move the files to a non-web-accessible directory and change the password on the database user.

eg, if your site’s root directory is /var/www/html, you could create a directory elswhere on the server (say /home/me/site-archive) and move the files from /var/www/html into /home/me/site-archive.

If you ever want to re-activate the site, you can move the files from /home/me/site-archive back to /var/www/html, and set the database user’s password back to what you find in wp-config.php (or update wp-config.php to use the new password).

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)