Factory(callable(mixed): Validator $factory)
Validates the input using a validator that is created from a callback.
v::factory(static fn($input) => v::boolVal())->assert(true);
// Validation passes successfullyThis validator is particularly useful when creating validators that rely on the input. A good example is validating whether a
confirmation field matches the password field when processing data from a form.
v::key('confirmation', v::equals($_POST['password'] ?? null))->assert($_POST);
// → `.confirmation` must be presentThe issue with the code is that it’s hard to reuse because you’re relying upon the input itself ($_POST). That means
you can create a chain of validators and use it everywhere.
The factory() validator makes this job much simpler and more elegantly:
v::factory(static fn($input) => v::key('confirmation', v::equals($input['password'] ?? null)))->assert($_POST);
// → `.confirmation` must be presentThe code above is similar to the first example, but the biggest difference is that the creation of the validator doesn't rely
on the input itself ($_POST), but it will use any input that’s given to the validator
| Placeholder | Description |
|---|---|
subject |
The validated input or the custom validator name (if specified). |
- Callables
- Nesting
| Version | Description |
|---|---|
| 3.0.0 | Created from KeyValue |