* Retrieves and sets site options, including plugin and WordPress settings.
*
* See the [Plugin Settings API](https://developer.wordpress.org/plugins/settings/settings-api/) and the [Theme Options](https://developer.wordpress.org/themes/customize-api/) for more information on adding customized options.
*
* ## COMMON OPTIONS
*
* These are some of the most commonly used WordPress options:
*
* * `siteurl` - Site URL, e.g. http://example.com
* * `blogname` - Site title
* * `blogdescription` - Site tagline
* * `admin_email` - Administration email address
* * `default_role` - Default role for new users
* * `timezone_string` - Local timezone, e.g. "America/New_York"
* * `home` - Home URL, e.g. http://example.com
* * `blog_public` - Discourage search engines when set to 0
*
* For the full list of available options, see the [Option Reference](https://developer.wordpress.org/apis/options/).