is_subdomain_install() WordPress Function

function is_subdomain_install() {
	if ( defined( 'SUBDOMAIN_INSTALL' ) ) {
		return SUBDOMAIN_INSTALL;
	}

	return ( defined( 'VHOST' ) && 'yes' === VHOST );
}
Used By	Description
wp-includes/ms-site.php:wp_initialize_site()	Runs the initialization routine for a given site.
wp-includes/ms-site.php:wp_normalize_site_data()	Normalizes data for a site prior to inserting or updating in the database.
wp-includes/embed.php:get_oembed_response_data_for_url()	Retrieves the oEmbed response data for a given URL.
wp-signup.php:show_blog_form()	Generates and displays the Sign-up and Create Site forms.
wp-admin/includes/network.php:network_step2()	Prints step 2 for Network installation process.
wp-admin/includes/ms.php:avoid_blog_page_permalink_collision()	Avoids a collision between a site slug and a permalink slug.
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-includes/ms-deprecated.php:install_blog()	Install an empty blog.
wp-includes/ms-functions.php:wpmu_validate_blog_signup()	Processes new site registrations.
wp-includes/ms-functions.php:wpmu_signup_blog_notification()	Sends 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-deprecated.php:get_blogaddress_by_domain()	Get a full blog URL, given a domain and a path.
wp-includes/ms-blogs.php:get_blogaddress_by_name()	Get a full blog URL, given a blog name.
wp-includes/ms-blogs.php:get_id_from_blogname()	Retrieves a sites ID given its (subdomain or directory) slug.
wp-includes/ms-blogs.php:get_blog_details()	Retrieve the details for a blog from the blogs table and blog options.
wp-includes/ms-default-constants.php:ms_cookie_constants()	Defines Multisite cookie constants.