class.deprecatedAttribute

Code example

<?php declare(strict_types = 1);

#[\Deprecated]
class Foo
{
}

Why is it reported?

The PHP 8.4 #[\Deprecated] attribute is designed for functions, methods, and class constants. It cannot be applied to classes, interfaces, or enums. To mark a class as deprecated, use the @deprecated PHPDoc tag instead. Using the #[\Deprecated] attribute on a class has no effect at runtime and indicates a misunderstanding of the attribute's intended usage.

On PHP 8.5, the #[\Deprecated] attribute can also be used on traits and constants.

How to fix it

Replace the #[\Deprecated] attribute with a @deprecated PHPDoc tag:

 <?php declare(strict_types = 1);

-#[\Deprecated]
+/** @deprecated Use Bar instead */
 class Foo
 {
 }