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psalm/docs/running_psalm/issues/InvalidEnumCaseValue.md

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# InvalidEnumCaseValue
Emitted when case value is invalid (see below).
## Case with a value on a pure enum
```php
<?php
enum Status
{
case Open = "open";
}
```
### How to fix
Either remove the value or alter the enum to be backed.
```php
<?php
enum Status: string
{
case Open = "open";
}
```
## Case without a value on a backed enum
```php
<?php
enum Status: string
{
case Open;
}
```
### How to fix
Either alter the enum to be pure, or add a value.
```php
<?php
enum Status
{
case Open;
}
```
## Case type mismatch
Case type should match the backing type of the enum.
```php
<?php
enum Status: string
{
case Open = 1;
}
```
### How to fix
Change the types so that they match
```php
<?php
enum Status: string
{
case Open = "open";
}
```
## Case with a type that cannot back an enum
Case type should be either `int` or `string`.
```php
<?php
enum Status: int {
case Open = [];
}
```
### How to fix
Change the case value so that it's one of the allowed types (and matches the backing type)
```php
<?php
enum Status: int
{
case Open = 1;
}
```