respect-validation/docs/Xdigit.md

Xdigit

• v::xdigit()

Accepts an hexadecimal number:

v::xdigit()->validate('abc123'); //true

Notice, however, that it doesn't accept strings starting with 0x:

v::xdigit()->validate('0x1f'); //false

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See also:

• Digit
• Alnum
• HexRgbColor