parameter.internalEnum

Code example

<?php declare(strict_types = 1);

namespace Vendor {
	/** @internal */
	enum InternalStatus: string {
		case Active = 'active';
	}
}

namespace App {
	function process(\Vendor\InternalStatus $status): void {}
}

Why is it reported?

The parameter type hint references an enum that is marked as @internal. Internal enums are not part of the public API and are intended for use only within the package or namespace where they are defined. Using an internal enum as a parameter type outside its root namespace means the code depends on an implementation detail that may change or be removed without notice.

How to fix it

Use the public API provided by the package instead of referencing internal enums directly:

 namespace App {
-	function process(\Vendor\InternalStatus $status): void {}
+	function process(\Vendor\PublicStatus $status): void {}
 }

If no public alternative exists, consider reaching out to the package maintainers to request a public API for the functionality needed.