Issue errors when implementing deprecated Serializable interface without serialization magic methods

[bburnichon]

Feature request

Add an issue at level 0 for classes intended to be compatible with php >8.1 that implements deprecated Serializable interface but have no serialization magic methods.

Discussed in #7480

^{Originally posted by bburnichon June 15, 2022}
Hi there,

I am currently working on making codebase compatible with php 8.1, I am looking for a rule to detect classes implementing Serializable but not implementing __serialize and __unserialize methods which appeared in PHP 7.4.

Do you know whether this was already implemented?

Thanks in advance for your support.

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