classConstant.deprecated

Code example

<?php declare(strict_types = 1);

class Foo
{
	/** @deprecated Use NEW_VALUE instead */
	public const OLD_VALUE = 'old';

	public const NEW_VALUE = 'new';
}

echo Foo::OLD_VALUE;

Why is it reported?

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

The code accesses a class constant that has been marked with a @deprecated PHPDoc tag. Deprecated constants are scheduled for removal in a future version, and new code should not rely on them.

In the example above, the constant OLD_VALUE on class Foo is deprecated.

How to fix it

Replace the usage with the recommended replacement constant:

 <?php declare(strict_types = 1);

-echo Foo::OLD_VALUE;
+echo Foo::NEW_VALUE;