classConstant.deprecatedInterface

Code example

<?php declare(strict_types = 1);

/** @deprecated Use NewInterface instead. */
interface OldInterface
{
    public const FOO = 'foo';
}

// Accessing a constant on a deprecated interface
echo OldInterface::FOO;

Why is it reported?

The code accesses a class constant on an interface that has been marked with a @deprecated PHPDoc tag. The interface is scheduled for removal or replacement, and any usage of its constants should be migrated to the recommended alternative.

This rule is provided by the phpstan-deprecation-rules package.

How to fix it

Replace the usage with the constant from the non-deprecated replacement, as indicated in the deprecation message:

 <?php declare(strict_types = 1);

-echo OldInterface::FOO;
+echo NewInterface::FOO;