Proven Expertise
Our team brings years of experience in the digital payments industry to provide reliable services.
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Uid;
/**
* @author Grégoire Pineau <lyrixx@lyrixx.info>
*
* @see https://tools.ietf.org/html/rfc4122#appendix-C for details about namespaces
*/
class Uuid extends AbstractUid
{
public const NAMESPACE_DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
public const NAMESPACE_URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';
public const NAMESPACE_OID = '6ba7b812-9dad-11d1-80b4-00c04fd430c8';
public const NAMESPACE_X500 = '6ba7b814-9dad-11d1-80b4-00c04fd430c8';
protected const TYPE = 0;
protected const NIL = '00000000-0000-0000-0000-000000000000';
public function __construct(string $uuid, bool $checkVariant = false)
{
$type = preg_match('{^[0-9a-f]{8}(?:-[0-9a-f]{4}){3}-[0-9a-f]{12}$}Di', $uuid) ? (int) $uuid[14] : false;
if (false === $type || (static::TYPE ?: $type) !== $type) {
throw new \InvalidArgumentException(sprintf('Invalid UUID%s: "%s".', static::TYPE ? 'v'.static::TYPE : '', $uuid));
}
$this->uid = strtolower($uuid);
if ($checkVariant && !\in_array($this->uid[19], ['8', '9', 'a', 'b'], true)) {
throw new \InvalidArgumentException(sprintf('Invalid UUID%s: "%s".', static::TYPE ? 'v'.static::TYPE : '', $uuid));
}
}
public static function fromString(string $uuid): static
{
if (22 === \strlen($uuid) && 22 === strspn($uuid, BinaryUtil::BASE58[''])) {
$uuid = str_pad(BinaryUtil::fromBase($uuid, BinaryUtil::BASE58), 16, "\0", \STR_PAD_LEFT);
}
if (16 === \strlen($uuid)) {
// don't use uuid_unparse(), it's slower
$uuid = bin2hex($uuid);
$uuid = substr_replace($uuid, '-', 8, 0);
$uuid = substr_replace($uuid, '-', 13, 0);
$uuid = substr_replace($uuid, '-', 18, 0);
$uuid = substr_replace($uuid, '-', 23, 0);
} elseif (26 === \strlen($uuid) && Ulid::isValid($uuid)) {
$ulid = new NilUlid();
$ulid->uid = strtoupper($uuid);
$uuid = $ulid->toRfc4122();
}
if (__CLASS__ !== static::class || 36 !== \strlen($uuid)) {
return new static($uuid);
}
if (self::NIL === $uuid) {
return new NilUuid();
}
if (\in_array($uuid[19], ['8', '9', 'a', 'b', 'A', 'B'], true)) {
switch ($uuid[14]) {
case UuidV1::TYPE: return new UuidV1($uuid);
case UuidV3::TYPE: return new UuidV3($uuid);
case UuidV4::TYPE: return new UuidV4($uuid);
case UuidV5::TYPE: return new UuidV5($uuid);
case UuidV6::TYPE: return new UuidV6($uuid);
}
}
return new self($uuid);
}
final public static function v1(): UuidV1
{
return new UuidV1();
}
final public static function v3(self $namespace, string $name): UuidV3
{
// don't use uuid_generate_md5(), some versions are buggy
$uuid = md5(hex2bin(str_replace('-', '', $namespace->uid)).$name, true);
return new UuidV3(self::format($uuid, '-3'));
}
final public static function v4(): UuidV4
{
return new UuidV4();
}
final public static function v5(self $namespace, string $name): UuidV5
{
// don't use uuid_generate_sha1(), some versions are buggy
$uuid = substr(sha1(hex2bin(str_replace('-', '', $namespace->uid)).$name, true), 0, 16);
return new UuidV5(self::format($uuid, '-5'));
}
final public static function v6(): UuidV6
{
return new UuidV6();
}
public static function isValid(string $uuid): bool
{
if (self::NIL === $uuid && \in_array(static::class, [__CLASS__, NilUuid::class], true)) {
return true;
}
if (__CLASS__ === static::class && 'ffffffff-ffff-ffff-ffff-ffffffffffff' === strtr($uuid, 'F', 'f')) {
return true;
}
if (!preg_match('{^[0-9a-f]{8}(?:-[0-9a-f]{4}){2}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$}Di', $uuid)) {
return false;
}
return __CLASS__ === static::class || static::TYPE === (int) $uuid[14];
}
public function toBinary(): string
{
return uuid_parse($this->uid);
}
public function toRfc4122(): string
{
return $this->uid;
}
public function compare(AbstractUid $other): int
{
if (false !== $cmp = uuid_compare($this->uid, $other->uid)) {
return $cmp;
}
return parent::compare($other);
}
private static function format(string $uuid, string $version): string
{
$uuid[8] = $uuid[8] & "\x3F" | "\x80";
$uuid = substr_replace(bin2hex($uuid), '-', 8, 0);
$uuid = substr_replace($uuid, $version, 13, 1);
$uuid = substr_replace($uuid, '-', 18, 0);
return substr_replace($uuid, '-', 23, 0);
}
}
How it Works
Getting started with NFC Pay is simple and quick. Register your account, add your cards, and you're ready to make payments in no time. Whether you're paying at a store, sending money to a friend, or managing your merchant transactions, NFC Pay makes it easy and secure.
Download the NFC Pay app and sign up with your email or phone number. Complete the registration process by verifying your identity, and set up your secure PIN to protect your account.
Link your debit or credit cards to your NFC Pay wallet. Simply scan your card or enter the details manually, and you’re set to load funds, shop, and pay with ease.
To pay, simply tap your phone or scan the QR code at checkout. You can also transfer money to other users with a few taps. Enjoy fast, contactless payments with top-notch security.
Security System
NFC Pay prioritizes your security with advanced features that safeguard every transaction. From SMS or email verification to end-to-end encryption, we've implemented robust measures to ensure your data is always protected. Our security systems are designed to prevent unauthorized access and provide you with a safe and reliable payment experience.
Receive instant alerts for every transaction to keep track of your account activities.
Verify your identity through our Know Your Customer process to prevent fraud and enhance security.
Dramatically supply transparent backward deliverables before caward comp internal or "organic" sources.
All your data and transactions are encrypted, ensuring that your sensitive information remains private.
Monitor unusual activity patterns to detect and prevent suspicious behavior in real-time.
Why Choice Us
With NFC Pay, you get a trusted platform backed by proven expertise and a commitment to quality. We put our customers first, offering innovative solutions tailored to your needs, ensuring every transaction is secure, swift, and seamless.
Our team brings years of experience in the digital payments industry to provide reliable services.
We prioritize excellence, ensuring that every aspect of our platform meets the highest standards.
Your needs drive our solutions, and we are dedicated to delivering a superior user experience.
We continuously evolve, integrating the latest technologies to enhance your payment experience.
Testimonial Section
Hear from our users who trust NFC Pay for their everyday transactions. Our commitment to security, ease of use, and exceptional service shines through in their experiences. See why our clients choose NFC Pay for their payment needs and how it has transformed the way they manage their finances.
App Section
Unlock the full potential of NFC Pay by downloading our app, designed to bring secure, swift, and smart transactions to your fingertips. Whether you're paying at a store, transferring money to friends, or managing your business payments, the NFC Pay app makes it effortless. Available on both iOS and Android, it's your all-in-one solution for convenient and reliable digital payments. Download now and experience the future of payments!