1# Consonant
2
3- `v::consonant()`
4- `v::consonant(string $additionalChars)`
5
6Similar to `v::alnum()`. Validates strings that contain only consonants:
7
8```php
9v::consonant()->validate('xkcd'); // true
10```
11
12***
13See also:
14
15  * [Alnum](Alnum.md)
16  * [Digit](Digit.md)
17  * [Alpha](Alpha.md)
18  * [Vowel](Vowel.md)
19