enum.nameCase

Code example

<?php declare(strict_types = 1);

enum Suit
{
	case Hearts;
	case Diamonds;
}

function doFoo(suit $s): void
{
}

Why is it reported?

The enum name is referenced with incorrect letter casing. While PHP class and enum names are case-insensitive at runtime, using inconsistent casing leads to confusion and makes code harder to maintain. The reference suit does not match the declared name Suit.

How to fix it

Use the correct casing that matches the enum declaration:

-function doFoo(suit $s): void
+function doFoo(Suit $s): void
 {
 }