notIn
Checks that the given value is not in the given list of values
V::notIn($value, $notIn): boolParameters
| Name | Type | Default | 
|---|---|---|
| $value * | mixed | – | 
| $notIn * | mixed | – | 
Return type
bool
In your code
if(V::notIn('A', ['B', 'C', 'D'])) {
  echo 'Yay, valid!';
}In fields
fields:
  example:
    label: Example field
    type: text
    validate:
      notIn:
        - B
        - C
        - D