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<?php class Base {} class Sub extends Base{} class NoRelation {} interface I { public function foo(Sub $x); } class CorrectImplementor implements I { public function foo(Base $x) {} // Should be ok } class IncorrectImplementor implements I { public function foo(NoRelation $x) {} // Should be disallowed }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of IncorrectImplementor::foo(NoRelation $x) must be compatible with I::foo(Sub $x) in /in/5QNhb on line 16
Process exited with code 255.

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