PHP 7.4.0-7.4.11 fatal due to covariant return type bug in php-ai-client DTOs

[sensahin]

The plugin declare PHP 7.4+ support, but on PHP 7.4.0 the AI Client DTO inheritance pattern can fatal with:

Declaration of GenerativeAiResult::fromArray(array $array): GenerativeAiResult must be compatible with WithArrayTransformationInterface::fromArray(array $array): WithArrayTransformationInterface

This appears to be PHP bug (80126), fixed in PHP 7.4.12:

https://bugs.php.net/bug.php?id=80126
https://www.php.net/ChangeLog-7

So the practical minimum for the PHP SDK path may be PHP 7.4.12+, not PHP 7.4.0+.

Could the compatibility docs/plugin headers/runtime checks clarify that PHP 7.4.12+ is required for the PHP AI Client SDK path, or add a guard/admin notice for PHP 7.4.0-7.4.11?

[vyskoczilova]

I will work on it during a CD at WCEU :)

[sensahin]

Thank you :)

[justlevine]

Per the call last week, since we need to stay in sync w. core's 7.4.0, the solution is to move any problematic typing out of the type signature and into their doc-blocks