network_admin_url() WP 1.0

Retrieves the URL to the admin area for the network.

Hooks in function

Return

String. Admin URL link with optional path appended.

Usage

network_admin_url( $path, $scheme );

$path(string)

Optional path relative to the admin URL.
Default: ''

$scheme(string)

The scheme to use. 'http' or 'https' can be passed to force those schemes.
Default: 'admin', which obeys force_ssl_admin() and is_ssl()

Code of network admin url: wp-includes/link-template.php ^{VER 5.1.1}

<?php
function network_admin_url( $path = '', $scheme = 'admin' ) {
	if ( ! is_multisite() ) {
		return admin_url( $path, $scheme );
	}

	$url = network_site_url( 'wp-admin/network/', $scheme );

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

	/**
	 * Filters the network admin URL.
	 *
	 * @since 3.0.0
	 *
	 * @param string $url  The complete network admin URL including scheme and path.
	 * @param string $path Path relative to the network admin URL. Blank string if
	 *                     no path is specified.
	 */
	return apply_filters( 'network_admin_url', $url, $path );
}

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From tag: Link (URL)

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