Error Identifier: method.nonAbstract
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);
class HelloWorld
{
public function sayHello(): void;
}
Why is it reported? #
A non-abstract method in a non-abstract class is declared without a body. In PHP, only abstract methods in abstract classes or interfaces can omit the method body. A concrete method in a concrete class must have a body with an implementation, even if the body is empty.
This is a compile-time error in PHP and the code will not run.
How to fix it #
Add a method body:
class HelloWorld
{
- public function sayHello(): void;
+ public function sayHello(): void
+ {
+ // implementation
+ }
}
If the method is meant to be abstract, declare both the method and the class as abstract:
-class HelloWorld
+abstract class HelloWorld
{
- public function sayHello(): void;
+ abstract public 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\AbstractMethodInNonAbstractClassRule [1]