network_home_url() │ WP 3.0.0

Gets the URL of the homepage of the main site in the current network of sites (for MU installation).

The URL is returned with auto-detection of the protocol: https or http. You can specify the protocol explicitly by setting it in the $scheme parameter.

network_home_url() — an analog of home_url() but for the network...

This function actually returns the same as network_site_url() and is a copy of it. For the network, unlike a single site or a site in the network, there is no difference in the URL even when the WP core is installed in a subdirectory...

Hooks from the function

Returns

String. URL to the homepage.

Usage

echo network_home_url( $path, $scheme );
$path(string)
Path to be added to the URL.
Default: ''
$scheme(string)
URL protocol. Can be: http, https, relative.
Default: null (auto-detected see is_ssl())

Examples

0

#1 Get the link to the main blog of the network of sites 

echo network_home_url();
// outputs: http://www.example.com

Changelog

Since 3.0.0 Introduced.

network_home_url() code WP 6.9

wp-includes/link-template.php 
function network_home_url( $path = '', $scheme = null ) {
	if ( ! is_multisite() ) {
		return home_url( $path, $scheme );
	}

	$current_network = get_network();
	$orig_scheme     = $scheme;

	if ( ! in_array( $scheme, array( 'http', 'https', 'relative' ), true ) ) {
		$scheme = is_ssl() ? 'https' : 'http';
	}

	if ( 'relative' === $scheme ) {
		$url = $current_network->path;
	} else {
		$url = set_url_scheme( 'http://' . $current_network->domain . $current_network->path, $scheme );
	}

	if ( $path && is_string( $path ) ) {
		$url .= ltrim( $path, '/' );
	}

	/**
	 * Filters the network home URL.
	 *
	 * @since 3.0.0
	 *
	 * @param string      $url         The complete network home URL including scheme and path.
	 * @param string      $path        Path relative to the network home URL. Blank string
	 *                                 if no path is specified.
	 * @param string|null $orig_scheme Scheme to give the URL context. Accepts 'http', 'https',
	 *                                 'relative' or null.
	 */
	return apply_filters( 'network_home_url', $url, $path, $orig_scheme );
}

Link (URL)

Multisite