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In-Reply-To: <5be74be4-972f-4eae-ae46-6d92587ccc7f@processus.org>
Date: Tue, 24 Oct 2023 00:35:36 +0900
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References: <5be74be4-972f-4eae-ae46-6d92587ccc7f@processus.org>
To: Pierre <pierre-php@processus.org>
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Subject: Re: [PHP-DEV] Constructor promoted property and default value
From: saki@sakiot.com (Saki Takamachi)

Hi, Pierre

You may have overlooked the existence of the magic method =
`__unserialize()`. Constructor is not the only way to create instances.

When rebuilding a serialized object, you may need the initial values =
=E2=80=8B=E2=80=8Bof properties. This can easily happen if you are using =
rolling updates and using Redis. The constructor is not called if =
`__unserialize()` is called. In this case, defining the initial value of =
a property as an argument to a constructor that is never called confuses =
us.

Regards.

Saki=