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<?php interface Interface1 { public function test1 (array $arr1 = [], array &$arr2 = []); } interface Interface2 extends Interface1 { public function test1 (array $arr1 = []); }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of Interface2::test1(array $arr1 = []) must be compatible with Interface1::test1(array $arr1 = [], array &$arr2 = []) in /in/juZTe on line 8
Process exited with code 255.

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