PHP 8.1: Magic methods replacing Serialize interface are not implemented

[remorhaz]

Description

I'm getting the deprecation notice:

Deprecated: The Serializable interface is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary)
/.../vendor/ramsey/uuid/src/Uuid.php:41

I guess that it's enough just to add forementioned magic methods to get rid of message.

Steps to reproduce

In my case, I'm just creating an UuidFactory instance.

Environment details

• version of this package: 4.2.1
• PHP version: 8.1.0 beta2

[ramsey]

Thanks for reporting. Commenting to link this to #378

[ramsey]

This is fixed in version 4.2.2.

[remorhaz]

The problem with Uuid class is gone, thank you. But it still exists when I try to $this->createStub(UuidInterface::class) in PHPUnit - because there're still no magic methods in UuidInterface (see phpunit#4786 issue).

In the same time, UuidInterface exposes magic __toString() method; maybe it would be wise to expose magic serialization methods, too? In fact, they are direct replacement for the deprecated Serializable interface.

[ramsey]

Unfortunately, I can't add anything to the UuidInterface interface without breaking BC. If I change the interface, I need to bump the library version to 5.0.0, but at the same time, this means that anyone who continues to use the 4.x series on PHP 8 will end up seeing errors.

I'm not sure what is the correct approach.

This conversation is also somewhat related, since it involves versioning changes: 3c1ce39#commitcomment-57044641

[DavidGarciaCat]

Hello @ramsey

May I ask why there is a problem with releasing version 5.0.0 (which will fix this deprecation notice)?

Previous and existing projects will keep using version 4, so it should not be a BC issue as far as they use the previous version, and if developers want to upgrade to a new major version, it's expected to have BC, and they will need to be fixed, right?

At the moment, I am getting the same deprecation notice when running PHPUnit tests and having installed this vendor via the Doctrine UUID bundle (https://github.com/ramsey/uuid-doctrine/).

  1x: Mock_UuidInterface_5306abad implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary)
    1x in ServiceNameTest::testMethodName from App\Tests\Other\Namespace

I hope you can give some feedback here.

Thanks,