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<?php class A {public ?string $r = '';} class B extends A {public ?string $r;} (new B)->r;
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Typed property B::$r must not be accessed before initialization in /in/VWZrF:6 Stack trace: #0 {main} thrown in /in/VWZrF on line 6
Process exited with code 255.

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