Validator.md

VALIDATOR

fibonacci($value)

Validates whether the input follows the Fibonacci integer sequence.

use Realodix\Utils\Validator as Val;

Val::fibonacci(1);  // true
Val::fibonacci(34); // true

Val::fibonacci('is_not_numeric'); // false

luhn()

Ensure that a credit card number passes the Luhn algorithm. It is useful as a first step to validating a credit card: before communicating with a payment gateway.

See https://en.wikipedia.org/wiki/Luhn_algorithm

use Realodix\Utils\Validator as Val;

Val::luhn('79927398713'); // true
Val::luhn('79927398712'); // false