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Error Identifier: sealed.internalEnum

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);

namespace App;

use Internal\Status;

/**
 * @phpstan-sealed Status
 */
interface StatusProvider
{
}

Why is it reported? #

The @phpstan-sealed PHPDoc tag references an enum that is marked as @internal in another package. Internal symbols are not meant to be used outside of their own package, and referencing them in a @phpstan-sealed tag creates a dependency on an implementation detail that could change without notice.

How to fix it #

Reference only public (non-internal) enums in @phpstan-sealed tags, or create your own enum that mirrors the needed values.

 <?php declare(strict_types = 1);
 
 namespace App;

-use Internal\Status;
+use App\Enums\Status;

 /**
  * @phpstan-sealed Status
  */
 interface StatusProvider
 {
 }

How to ignore this error #

You can use the identifier sealed.internalEnum to ignore this error using a comment:

// @phpstan-ignore sealed.internalEnum
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: sealed.internalEnum

Rules that report this error #

• PHPStan\Rules\InternalTag\RestrictedInternalClassNameUsageExtension [1]

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