For the PHP version: Why is the search method static? You are forcing whatever class you are using to be tightly coupled. Dependency injection can be done in PH

For the PHP version: Why is the search method static? You are forcing whatever class you are using to be tightly coupled. Dependency injection can be done in PHP, too. Better: $bt = Braintree_Transaction_Search::someFactory(); $collection = $bt->search(array( $bt->orderId()->startsWith('a2d') $bt->customerWebsite()->endsWith('.com'), $bt->billingFirstName()->is('John'), $bt->status()->in(array( Braintree_Transaction::AUTHORIZED, Braintree_Transaction::SETTLED )), $bt->amount()->between('10.00', '20.00') )); If you're really up to it, there is no reason you couldn't use an even more fluent interface in PHP... $collection = $bt->where() ->orderId()->startsWith('a2d') ->and()->customerWebsite()->endsWith('.com') ->and()->billingFirstName()->is('John') ->search(); Also, please make sure the search method returns an iterator, not an array. Just because PHP allows you to shoot yourself in the foot, doesn't mean you should.