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<?php interface TestInterface { public function test($value = null); } class TestClass implements TestInterface { public function test($value) { return $value; } } var_dump((new TestClass)->test());
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of TestClass::test($value) must be compatible with TestInterface::test($value = null) in /in/L94uR on line 8
Process exited with code 255.

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