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<?php trait T { abstract static function values(): array; } class A { use T; static function values() { return 'Worked!'; } } echo A::values(); // print: Worked! abstract class B { use T; } class C extends B { static function values() { return 'Don\'t worked'; } } echo C::values();
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of A::values() must be compatible with T::values(): array in /in/38lmA on line 9
Process exited with code 255.

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