Backup your database to dropbox easily.
You can just download the file to your project, or install it via composer:
composer require "howtomakeaturn/db-2-dropbox"
Get dropbox app key, secret, and access token from Dropbox App Console (Choose 'App folder' for the type)
$db2d = new Db2d();
$db2d->configureDatabase($db, $username, $password);
$db2d->configureDropbox($app_key, $app_secret, $access_token);
$db2d->backup();
And then you can see your database backup in the dropbox folder!