get_current_network_id()

Retrieves the current network ID.

Return

(int) The ID of the current network.

Source

File: wp-includes/load.php 

function get_current_network_id() {
	if ( ! is_multisite() ) {
		return 1;
	}

	$current_network = get_network();

	if ( ! isset( $current_network->id ) ) {
		return get_main_network_id();
	}

	return absint( $current_network->id );
}

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Related

Uses

Uses
Uses Description
wp-includes/ms-blogs.php: get_network()

Retrieves network data given a network ID or network object.
wp-includes/load.php: is_multisite()

If Multisite is enabled.
wp-includes/functions.php: get_main_network_id()

Get the main network ID.
wp-includes/functions.php: absint()

Convert a value to non-negative integer.

Used By

Used By
Used By Description
wp-signup.php: validate_another_blog_signup()

Validate a new site signup.
wp-includes/ms-deprecated.php: get_admin_users_for_domain()

Get the admin for a domain/path combination.
wp-includes/ms-deprecated.php: wp_get_sites()

Return an array of sites for a network or networks.
wp-includes/ms-deprecated.php: get_blog_list()

Deprecated functionality to retrieve a list of all sites.
wp-includes/ms-blogs.php: get_last_updated()

Get a list of most recently updated blogs.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getUsersBlogs()

Retrieve the blogs of the user.
wp-includes/option.php: get_network_option()

Retrieve a network’s option value based on the option name.
wp-includes/option.php: add_network_option()

Add a new network option.
wp-includes/option.php: delete_network_option()

Removes a network option by name.
wp-includes/option.php: update_network_option()

Update the value of a network option that was already added.
wp-includes/option.php: wp_load_core_site_options()

Loads and caches certain often requested site options if is_multisite() and a persistent cache is not being used.
wp-includes/ms-functions.php: wp_is_large_network()

Whether or not we have a large network.
wp-includes/ms-functions.php: wp_update_network_site_counts()

Update the network-wide site count.
wp-includes/ms-functions.php: wpmu_signup_blog_notification()

Send a confirmation request email to a user when they sign up for a new site. The new site will not become active until the confirmation link is clicked.
wp-includes/ms-functions.php: wpmu_activate_signup()

Activate a signup.
wp-includes/ms-functions.php: get_active_blog_for_user()

Get one of a user’s active blogs
wp-includes/functions.php: is_main_network()

Determine whether a network is the main network of the Multisite installation.
wp-admin/press-this.php: wp_load_press_this()
wp-admin/includes/class-wp-ms-sites-list-table.php: WP_MS_Sites_List_Table::prepare_items()

Prepares the list of sites for display.
wp-admin/includes/ms.php: can_edit_network()

Whether or not we can edit this network from this page.
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Changelog

Changelog
Version Description
WP-4.6.0 Introduced.