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