Validating array keys

[rick-nu]

What

In #116 @camcima presented a way to make array keys testable. With the given PR, array keys are converted into a value in the array, which then becomes testable the regular way. Thus, a key value "magically" appears in your data array.

We need to think if there is a better solution for this. For example if it would be possible to:

$v->required('products')->each(function (Validator $validator) {
    $validator->key()->regex('/^SKU\d{4}\-\d{3}/');
    $validator->required('price')->integer();
    $validator->required('quantity')->integer;
});

This issue is open to suggestions and pull requests.

[nesl247]

Any update on this? I just went to use the validator in a new project and realized this isn't currently possible.