User::isCurrentUserAdmin

static function isCurrentUserAdmin()
{
	global $USER;
	if(!$USER instanceof CUser)
	{
		return false;
	}
	if($USER->isAdmin())
	{
		return true;
	}
	try
	{
		if(ModuleManager::isModuleInstalled('bitrix24') && Loader::includeModule('bitrix24'))
		{
			return CBitrix24::isPortalAdmin($USER->getId());
		}
	}
	catch(Exception $e)
	{
	}

	return false;
}