<?php

/**
 * This file is part of the ramsey/collection 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\Collection;

/**
 * A set is a collection that contains no duplicate elements.
 *
 * Great care must be exercised if mutable objects are used as set elements.
 * The behavior of a set is not specified if the value of an object is changed
 * in a manner that affects equals comparisons while the object is an element in
 * the set.
 *
 * Example usage:
 *
 * ``` php
 * $foo = new \My\Foo();
 * $set = new Set(\My\Foo::class);
 *
 * $set->add($foo); // returns TRUE, the element don't exists
 * $set->add($foo); // returns FALSE, the element already exists
 *
 * $bar = new \My\Foo();
 * $set->add($bar); // returns TRUE, $bar !== $foo
 * ```
 *
 * @template T
 * @extends AbstractSet<T>
 */
class Set extends AbstractSet
{
    /**
     * The type of elements stored in this set
     *
     * A set's type is immutable. For this reason, this property is private.
     */
    private string $setType;

    /**
     * Constructs a set object of the specified type, optionally with the
     * specified data.
     *
     * @param string $setType The type (FQCN) associated with this set.
     * @param array<array-key, T> $data The initial items to store in the set.
     */
    public function __construct(string $setType, array $data = [])
    {
        $this->setType = $setType;
        parent::__construct($data);
    }

    public function getType(): string
    {
        return $this->setType;
    }
}

• [D] Exception
• [D] Map
• [D] Tool
• [F] AbstractArray.php
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• [F] AbstractCollection.php
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• [F] AbstractSet.php
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• [F] ArrayInterface.php
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• [F] Collection.php
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• [F] CollectionInterface.php
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• [F] DoubleEndedQueue.php
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• [F] DoubleEndedQueueInterface.php
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• [F] GenericArray.php
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• [F] Queue.php
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• [F] QueueInterface.php
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• [F] Set.php
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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.
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• Experience the Ease of Tap and Pay.
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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?

Yes, we use advanced encryption and security protocols to protect your payment details.

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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