Error Identifier: method.abstractPrivate
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);
abstract class HelloWorld
{
abstract private function sayHello(): void;
}
Why is it reported? #
PHP does not allow private methods to be abstract. An abstract method is meant to be implemented by subclasses, but a private method cannot be accessed or overridden by subclasses. These two modifiers are contradictory, and PHP will produce a fatal error.
How to fix it #
Change the visibility to protected so the method can be implemented by subclasses:
abstract class HelloWorld
{
- abstract private function sayHello(): void;
+ abstract protected function sayHello(): void;
}
Non-ignorable error #
This error cannot be ignored using @phpstan-ignore or the ignoreErrors configuration. Non-ignorable errors indicate code that would cause a crash or a fatal error at runtime, or a fundamental problem in the analysed code that must be addressed.
Rules that report this error #
- PHPStan\Rules\Methods\AbstractPrivateMethodRule [1]