Error Identifier: classConstant.deprecatedEnum

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);

/** @deprecated Use NewStatus instead */
enum OldStatus: string
{
    case Active = 'active';
    case Inactive = 'inactive';
}

$value = OldStatus::Active;

Why is it reported? #

The code accesses a constant (or enum case) on an enum that has been marked as @deprecated. Deprecated enums are scheduled for removal in a future version and should no longer be used.

This error is reported by the phpstan-deprecation-rules extension.

How to fix it #

Use the replacement suggested in the deprecation message:

 <?php declare(strict_types = 1);
 
-$value = OldStatus::Active;
+$value = NewStatus::Active;

How to ignore this error #

You can use the identifier classConstant.deprecatedEnum to ignore this error using a comment:

// @phpstan-ignore classConstant.deprecatedEnum
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: classConstant.deprecatedEnum

Rules that report this error #

PHPStan\Rules\Deprecations\RestrictedDeprecatedClassConstantUsageExtension [1] [2] phpstan/phpstan-deprecation-rules
PHPStan\Rules\Deprecations\RestrictedDeprecatedClassNameUsageExtension [1] phpstan/phpstan-deprecation-rules

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