class.extendsDeprecatedClass

Code example

<?php declare(strict_types = 1);

/** @deprecated Use NewBaseClass instead */
class OldBaseClass
{
}

class Foo extends OldBaseClass
{
}

Why is it reported?

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

A class extends a class that has been marked as @deprecated. Extending deprecated classes ties your code to implementations that are planned for removal.

In the example above, class Foo extends OldBaseClass, which is deprecated.

How to fix it

Replace the deprecated base class with its recommended replacement:

 <?php declare(strict_types = 1);

-class Foo extends OldBaseClass
+class Foo extends NewBaseClass
 {
 }