classConstant.deprecatedClass

Code example

<?php declare(strict_types = 1);

/** @deprecated Use NewConfig instead */
class OldConfig
{
	public const VERSION = '1.0';
}

$version = OldConfig::VERSION;

Why is it reported?

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

A class constant is being accessed on a class that has been marked as @deprecated. Accessing constants on deprecated classes creates dependencies on classes that are planned for removal.

In the example above, the constant VERSION is fetched from the deprecated class OldConfig.

How to fix it

Access the constant from the recommended replacement class instead:

 <?php declare(strict_types = 1);

-$version = OldConfig::VERSION;
+$version = NewConfig::VERSION;