PHP/Laravel trim all but last word in a namespace

Trying to trim a fully qualified namespace so to use just the last word. Example namepspace is App\Models\FruitTypes\Apple where that final word could be any number of fruit types. Shouldn't this...

$fruitName = 'App\Models\FruitTypes\Apple';
trim($fruitName, "App\\Models\\FruitTypes\\");

...do the trick? It is returning an empty string. If I try to trim just App\\Models\\ it returns FruitTypes\Apples as expected. I know the backslash is an escape character, but doubling should treat those as actual backslashes.

via Chebli Mohamed