# Digit

- `Digit()`
- `Digit(string ...$additionalChars)`

Validates whether the input contains only digits.

```php
v::digit()->validate('020 612 1851'); // false
v::digit(' ')->validate('020 612 1851'); // true
v::digit()->validate('172.655.537-21'); // false
v::digit('.', '-')->validate('172.655.537-21'); // true
```

## Categorization

- Numbers
- Strings

## Changelog

Version | Description
--------|-------------
  2.0.0 | Removed support to whitespaces by default
  0.5.0 | Renamed from `Digits` to `Digit`
  0.3.9 | Created as `Digits`

***
See also:

- [Alnum](Alnum.md)
- [Alpha](Alpha.md)
- [Consonant](Consonant.md)
- [CreditCard](CreditCard.md)
- [Factor](Factor.md)
- [Finite](Finite.md)
- [Infinite](Infinite.md)
- [IntType](IntType.md)
- [IntVal](IntVal.md)
- [NotEmoji](NotEmoji.md)
- [NumericVal](NumericVal.md)
- [Regex](Regex.md)
- [Uuid](Uuid.md)
- [Vowel](Vowel.md)
- [Xdigit](Xdigit.md)