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<?php final class PaypalRepository { /** * @var string */ private string $apiUrl = null; public function __construct() { if (rand(0,1)) { $this->apiUrl = 'https://example.com/'; } else { $this->apiUrl = 'https://another.example.com/'; } unset($this->apiUrl); var_dump($this->apiUrl); } } new PaypalRepository();
Output for 8.1.0 - 8.1.26, 8.2.0 - 8.2.13, 8.3.0
Fatal error: Default value for property of type string may not be null. Use the nullable type ?string to allow null default value in /in/pBNnY on line 8
Process exited with code 255.

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