public allow (mixed $roleName, mixed $resourceName, mixed $access, [mixed $func])
Allow access to a role on a resource You can use ‘*’ as wildcard Example:
//Allow access to guests to search on customers
$acl->allow('guests', 'customers', 'search');
//Allow access to guests to search or create on customers
$acl->allow('guests', 'customers', array('search', 'create'));
//Allow access to any role to browse on products
$acl->allow('*', 'products', 'browse');
//Allow access to any