enumImplements.trait

Code example

<?php declare(strict_types = 1);

trait FooTrait
{
}

enum MyEnum implements FooTrait
{
	case A;
	case B;
}

Why is it reported?

An enum's implements clause must list interfaces, not traits. Traits are used with the use keyword inside the enum body, not in the implements clause. This is a PHP language-level error: the implements keyword is reserved for interfaces.

How to fix it

If the intent is to use the trait in the enum, move it to a use statement inside the enum body:

 <?php declare(strict_types = 1);

 trait FooTrait
 {
 }

-enum MyEnum implements FooTrait
+enum MyEnum
 {
+	use FooTrait;
+
 	case A;
 	case B;
 }

If the intent is to implement an interface, replace the trait reference with the correct interface:

 <?php declare(strict_types = 1);

-trait FooTrait
+interface FooInterface
 {
 }

-enum MyEnum implements FooTrait
+enum MyEnum implements FooInterface
 {
 	case A;
 	case B;
 }