PHPStan: Unsafe usage of new static() in multiple classes

[Vitexus]

PHPStan level 5 reports unsafe new static() usage in several classes. This can lead to unexpected behavior when classes are extended.

Found running PHPStan 2.x with PHP 8.4.

Affected files

• DataObjects/Attachment.php — lines 71, 79
• DataObjects/MailingList.php — line 89
• DataObjects/SubscribeWebHook.php — line 51
• DataObjects/UnsubscribeWebHook.php — line 55
• RPC/Responses/XmlSuccessRpcResponse.php — lines 44, 48, 52, 56
• Results/SendMailResult.php — line 72

Reference

https://phpstan.org/blog/solving-phpstan-error-unsafe-usage-of-new-static

How to reproduce

vendor/bin/phpstan analyse --level=5 src/