Cannot declare class Attribute, because the name is already in use

I have a controlled called Attribute.

It worked fine under PHP 7.4 and PHP 8.0 but on PHP 8.1 I get:

"Cannot declare class Attribute, because the name is already in use"

I searched my project and cannot find any other class called Attribute (not even in the system directory).

It doesn't seem to be a reserved keyword either.

Anything else I'm missing?

You cannot use class Attribute in PHP8, because PHP provides the class.
https://3v4l.org/1LTG3
See https://www.php.net/manual/en/language.a...lasses.php

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I believe it's a reserved word in php 8.

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