callback
Checks with the callback sent by the user It's ideal for one-time custom validations
V::callback($value, callable $callback): boolParameters
| Name | Type | Default |
|---|---|---|
| $value * | mixed |
– |
| $callback * | callable |
– |
Return type
bool
In your code
V::callback(
['green', 'blue'],
fn ($value) => count($value) === count(array_intersect($value, ['red', 'green', 'blue']))
);