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<?php interface Creator { public function create(): void; } class EchoCreator implements Creator { public function create(): void { echo 'Hello world!'; } } trait CreatorAble { abstract protected function creator(): Creator; public function useCreator(): void { $this->creator()->create(); } } final class SomeClass { private $creator; use CreatorAble; public function __construct(Creator $creator) { $this->creator = $creator; } private function creator(): Creator { return $this->creator; } } (new SomeClass(new EchoCreator))->useCreator();
Output for git.master, git.master_jit, rfc.property-hooks
Hello world!

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