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<?php class Dog {} class Bulldog {} interface DogFeeder { function feed(Dog $dog); } function feedChihuahua(DogFeeder $feeder) { $feeder->feed(new Chihuahua()); // this code is OK } class BulldogFeeder implements DogFeeder { function feed(Bulldog $dog) { } } // feedChihuahua(new BulldogFeeder());
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of BulldogFeeder::feed(Bulldog $dog) must be compatible with DogFeeder::feed(Dog $dog) in /in/f1SKJ on line 15
Process exited with code 255.

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