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<?php /** * @return int|null */ function divide(int $dividend, int $divisor): ?int { if (0 === $divisor) { return null; } return intdiv($dividend, $divisor); } function success(int $result): string { return sprintf('Result: %d', $result); } $result = divide(10, 0); echo success($result);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: success(): Argument #1 ($result) must be of type int, null given, called in /in/enpGW on line 21 and defined in /in/enpGW:15 Stack trace: #0 /in/enpGW(21): success(NULL) #1 {main} thrown in /in/enpGW on line 15
Process exited with code 255.

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