Emitted when method overrides a parent method but renames a param.
```php
<?php
class A {
public function foo(string $str, bool $b = false) : void {}
}
class AChild extends A {
public function foo(string $string, bool $b = false) : void {}
}
```
## Why is this bad?
PHP 8 introduces [named parameters](https://wiki.php.net/rfc/named_params) which allow developers to call methods with explicitly-named parameters;
```php
<?php
function callFoo(A $a) {
$a->foo(str: "hello");
}
```
In the first example passing `new AChild()` to `callFoo()` results in a fatal error, as AChild's definition of the method `foo()` doesn't have a parameter named `$str`.
## How to fix
You can change the child method param name to match:
```php
<?php
class A {
public function foo(string $str, bool $b = false) : void {}
}
class AChild extends A {
public function foo(string $str, bool $b = false) : void {}
}
```
## Workarounds
### @no-named-params
Alternatively you can ignore this issue by adding a `@no-named-params` annotation to the parent method:
```php
<?php
class A {
/** @no-named-params */
public function foo(string $str, bool $b = false) : void {}
}
class AChild extends A {
public function foo(string $string, bool $b = false) : void {}
}
```
Any method with this annotation will be prevented (by Psalm) from being called with named parameters, so the original issue does not matter.
