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is_multisite › WordPress Function

Since3.0.0
Deprecatedn/a
› is_multisite ( No parameters )
Returns:
  • (bool) True if Multisite is enabled, false otherwise.
Defined at:
Codex:

Determines whether Multisite is enabled.



Related Functions: is_main_site, is_multi_author, is_time, is_nav_menu_item, is_single

Source 

function is_multisite() {
	if ( defined( 'MULTISITE' ) ) {
		return MULTISITE;
	}

	if ( defined( 'SUBDOMAIN_INSTALL' ) || defined( 'VHOST' ) || defined( 'SUNRISE' ) ) {
		return true;
	}

	return false;
}