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<?php // case 1: dosen't work class A { public function test(): mixed {} } class B extends A { public function test(): void {} } // case 2: dosen't work class C { public function __toString(): void {} } // works class D { public function __invoke(): void { echo true; } }
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.5
Fatal error: Declaration of B::test(): void must be compatible with A::test(): mixed in /in/PCutT on line 9
Process exited with code 255.

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