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<?php interface A { public function foo(string $q, ?array $params, bool $reference): bool; } class B implements A { public function foo(string $q, ?array $params = null, bool $reference = false): bool { return true; } } $class = new B(); var_dump($class->foo('bar'));
Output for git.master, git.master_jit, rfc.property-hooks
bool(true)

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