The get_site_url() WordPress PHP function retrieves the URL for a given site where WordPress application files are accessible.
Usage
get_site_url($blog_id, $path, $scheme)
Custom example:
echo get_site_url(1, 'my-page', 'https');
Output: https://www.example.com/my-page
Parameters
$blog_id (int|null)– Optional. Site ID. Default null (current site).$path (string)– Optional. Path relative to the site URL. Default: ”.$scheme (string|null)– Optional. Scheme to give the site URL context. Accepts ‘http’, ‘https’, ‘login’, ‘login_post’, ‘admin’, or ‘relative’. Default: null.
More information
See WordPress Developer Resources: get_site_url()
Examples
Basic usage
Display the full site URL.
echo get_site_url();
Output: http://www.example.com
Get the hostname/domain component
To get just the hostname/domain component of the Site URL (without paths, schema, etc.).
echo parse_url(get_site_url(), PHP_URL_HOST);
WordPress installed in a subfolder
If WordPress is installed into a subfolder, this example shows the URL with the subfolder.
echo get_site_url();
Output: https://www.example.com/sub/folder
Add a custom path
Get the site URL with a custom path.
echo get_site_url(null, 'my-page');
Output: http://www.example.com/my-page
Specify a scheme
Get the site URL with a specified scheme.
$url = get_site_url(null, '/wp-content/themes/', 'https'); echo $url;