<?php

/**
 * This file is part of the ramsey/uuid library
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
 * @license http://opensource.org/licenses/MIT MIT
 */

declare(strict_types=1);

namespace Ramsey\Uuid;

use JsonSerializable;
use Ramsey\Uuid\Fields\FieldsInterface;
use Ramsey\Uuid\Type\Hexadecimal;
use Ramsey\Uuid\Type\Integer as IntegerObject;
use Serializable;
use Stringable;

/**
 * A UUID is a universally unique identifier adhering to an agreed-upon
 * representation format and standard for generation
 *
 * @psalm-immutable
 */
interface UuidInterface extends
    DeprecatedUuidInterface,
    JsonSerializable,
    Serializable,
    Stringable
{
    /**
     * Returns -1, 0, or 1 if the UUID is less than, equal to, or greater than
     * the other UUID
     *
     * The first of two UUIDs is greater than the second if the most
     * significant field in which the UUIDs differ is greater for the first
     * UUID.
     *
     * * Q. What's the value of being able to sort UUIDs?
     * * A. Use them as keys in a B-Tree or similar mapping.
     *
     * @param UuidInterface $other The UUID to compare
     *
     * @return int<-1,1> -1, 0, or 1 if the UUID is less than, equal to, or greater than $other
     */
    public function compareTo(UuidInterface $other): int;

    /**
     * Returns true if the UUID is equal to the provided object
     *
     * The result is true if and only if the argument is not null, is a UUID
     * object, has the same variant, and contains the same value, bit for bit,
     * as the UUID.
     *
     * @param object|null $other An object to test for equality with this UUID
     *
     * @return bool True if the other object is equal to this UUID
     */
    public function equals(?object $other): bool;

    /**
     * Returns the binary string representation of the UUID
     *
     * @psalm-return non-empty-string
     */
    public function getBytes(): string;

    /**
     * Returns the fields that comprise this UUID
     */
    public function getFields(): FieldsInterface;

    /**
     * Returns the hexadecimal representation of the UUID
     */
    public function getHex(): Hexadecimal;

    /**
     * Returns the integer representation of the UUID
     */
    public function getInteger(): IntegerObject;

    /**
     * Returns the string standard representation of the UUID as a URN
     *
     * @link http://en.wikipedia.org/wiki/Uniform_Resource_Name Uniform Resource Name
     * @link https://tools.ietf.org/html/rfc4122#section-3 RFC 4122, § 3: Namespace Registration Template
     */
    public function getUrn(): string;

    /**
     * Returns the string standard representation of the UUID
     *
     * @psalm-return non-empty-string
     */
    public function toString(): string;

    /**
     * Casts the UUID to the string standard representation
     *
     * @psalm-return non-empty-string
     */
    public function __toString(): string;
}

• [D] Builder
• [D] Codec
• [D] Converter
• [D] Exception
• [D] Fields
• [D] Generator
• [D] Guid
• [D] Lazy
• [D] Math
• [D] Nonstandard
• [D] Provider
• [D] Rfc4122
• [D] Type
• [D] Validator
• [F] BinaryUtils.php
  Delete
• [F] DegradedUuid.php
  Delete
• [F] DeprecatedUuidInterface.php
  Delete
• [F] DeprecatedUuidMethodsTrait.php
  Delete
• [F] FeatureSet.php
  Delete
• [F] functions.php
  Delete
• [F] Uuid.php
  Delete
• [F] UuidFactory.php
  Delete
• [F] UuidFactoryInterface.php
  Delete
• [F] UuidInterface.php
  Delete

About Section

About NFC Pay: Our Story and Mission

NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.

• Simplifying Payments, One Tap at a Time.
• Reinventing Your Wallet for Modern Convenience.
• Smart Payments for a Effortless Lifestyle.
• Experience the Ease of Tap and Pay.
• Innovative Solutions for Your Daily Transactions.

FAQ Section

Frequently Asked Questions About NFC Pay

Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.

How do I register for NFC Pay?

Download the app and sign up using your email or phone number, then complete the verification process.

Is my payment information secure?

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Can I add multiple cards to my NFC Pay wallet?

Absolutely, you can link multiple debit or credit cards to your wallet.

How do I transfer money to another user?

Go to the transfer section, select the recipient, enter the amount, and authorize the transfer.

What should I do if I forget my PIN?

Use the “Forgot PIN” feature in the app to reset it following the provided instructions.

How can I activate my merchant account?

Sign up for a merchant account through the app and follow the setup instructions to start accepting payments.

Can I track my payment status?

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