1# Xdigit
2
3- `v::xdigit()`
4
5Accepts an hexadecimal number:
6
7```php
8v::xdigit()->validate('abc123'); // true
9```
10
11Notice, however, that it doesn't accept strings starting with 0x:
12
13```php
14v::xdigit()->validate('0x1f'); // false
15```
16
17***
18See also:
19
20  * [Digit](Digit.md)
21  * [Alnum](Alnum.md)
22  * [HexRgbColor](HexRgbColor.md)
23