Ben bir dizi bazı anahtarlarını kaldırmak gerekir.

$array = array('a' => 'a', 'b' => 'b', 'c' => 'c');
unset($array['a']);
unset($array['b']);

How can I do this more elegance? Maybe there is a function like this array_keys_unset('a', 'b')?
I don't need array_values or foreach. I only want to know is it possible.
Thank you in advance. Sorry for my english and childlike question.