Error Identifier: requireImplements.internalInterface

Every error reported by PHPStan has an error identifier. Here’s a list of all error identifiers. In PHPStan Pro you can see the error identifier next to each error and filter errors by their identifiers.

Code example #

<?php declare(strict_types = 1);

// In package vendor/some-library:

namespace SomeLibrary;

/** @internal */
interface InternalInterface
{
}

<?php declare(strict_types = 1);

// In your code:

namespace App;

use SomeLibrary\InternalInterface;

/**
 * @phpstan-require-implements InternalInterface
 */
trait MyTrait
{
}

Why is it reported? #

A @phpstan-require-implements PHPDoc tag references an interface that is marked as @internal. Internal types are not part of the package’s public API and may change or be removed without notice.

How to fix it #

Use a public (non-internal) interface in the @phpstan-require-implements tag instead. If no public alternative exists, consider reaching out to the package maintainers to request a public API for your use case.

How to ignore this error #

You can use the identifier requireImplements.internalInterface to ignore this error using a comment:

// @phpstan-ignore requireImplements.internalInterface
codeThatProducesTheError();

You can also use only the identifier key to ignore all errors of the same type in your configuration file in the ignoreErrors parameter:

parameters:
	ignoreErrors:
		-
			identifier: requireImplements.internalInterface

Rules that report this error #

PHPStan\Rules\InternalTag\RestrictedInternalClassNameUsageExtension [1]

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