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