<?php

use IonBazan\NRIC\Exception\InvalidChecksumException;
use IonBazan\NRIC\Exception\InvalidFormatException;
use IonBazan\NRIC\NRIC;

$nric = NRIC::generateNric(new DateTime('1990-01-01')); // Generate a random NRIC number
$fin = NRIC::generateFin(new DateTime('1990-01-01')); // Generate a random FIN number

try {
    $invalid = NRIC::fromString('S0000001A'); // Create a self-validating (invalid) instance
} catch (InvalidChecksumException|InvalidFormatException $e) {
    var_dump('invalid');
}

$valid = NRIC::fromString('S0000001I'); // Create a self-validating instance from valid input
var_dump($valid->__toString()); // Thanks to Stringable interface