<?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\HttpFoundation;

use Symfony\Component\HttpFoundation\Exception\BadRequestException;

/**
 * ParameterBag is a container for key/value pairs.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 *
 * @implements \IteratorAggregate<string, mixed>
 */
class ParameterBag implements \IteratorAggregate, \Countable
{
    /**
     * Parameter storage.
     */
    protected $parameters;

    public function __construct(array $parameters = [])
    {
        $this->parameters = $parameters;
    }

    /**
     * Returns the parameters.
     *
     * @param string|null $key The name of the parameter to return or null to get them all
     */
    public function all(string $key = null): array
    {
        if (null === $key) {
            return $this->parameters;
        }

        if (!\is_array($value = $this->parameters[$key] ?? [])) {
            throw new BadRequestException(sprintf('Unexpected value for parameter "%s": expecting "array", got "%s".', $key, get_debug_type($value)));
        }

        return $value;
    }

    /**
     * Returns the parameter keys.
     */
    public function keys(): array
    {
        return array_keys($this->parameters);
    }

    /**
     * Replaces the current parameters by a new set.
     */
    public function replace(array $parameters = [])
    {
        $this->parameters = $parameters;
    }

    /**
     * Adds parameters.
     */
    public function add(array $parameters = [])
    {
        $this->parameters = array_replace($this->parameters, $parameters);
    }

    public function get(string $key, mixed $default = null): mixed
    {
        return \array_key_exists($key, $this->parameters) ? $this->parameters[$key] : $default;
    }

    public function set(string $key, mixed $value)
    {
        $this->parameters[$key] = $value;
    }

    /**
     * Returns true if the parameter is defined.
     */
    public function has(string $key): bool
    {
        return \array_key_exists($key, $this->parameters);
    }

    /**
     * Removes a parameter.
     */
    public function remove(string $key)
    {
        unset($this->parameters[$key]);
    }

    /**
     * Returns the alphabetic characters of the parameter value.
     */
    public function getAlpha(string $key, string $default = ''): string
    {
        return preg_replace('/[^[:alpha:]]/', '', $this->get($key, $default));
    }

    /**
     * Returns the alphabetic characters and digits of the parameter value.
     */
    public function getAlnum(string $key, string $default = ''): string
    {
        return preg_replace('/[^[:alnum:]]/', '', $this->get($key, $default));
    }

    /**
     * Returns the digits of the parameter value.
     */
    public function getDigits(string $key, string $default = ''): string
    {
        // we need to remove - and + because they're allowed in the filter
        return str_replace(['-', '+'], '', $this->filter($key, $default, \FILTER_SANITIZE_NUMBER_INT));
    }

    /**
     * Returns the parameter value converted to integer.
     */
    public function getInt(string $key, int $default = 0): int
    {
        return (int) $this->get($key, $default);
    }

    /**
     * Returns the parameter value converted to boolean.
     */
    public function getBoolean(string $key, bool $default = false): bool
    {
        return $this->filter($key, $default, \FILTER_VALIDATE_BOOLEAN);
    }

    /**
     * Filter key.
     *
     * @param int $filter FILTER_* constant
     *
     * @see https://php.net/filter-var
     */
    public function filter(string $key, mixed $default = null, int $filter = \FILTER_DEFAULT, mixed $options = []): mixed
    {
        $value = $this->get($key, $default);

        // Always turn $options into an array - this allows filter_var option shortcuts.
        if (!\is_array($options) && $options) {
            $options = ['flags' => $options];
        }

        // Add a convenience check for arrays.
        if (\is_array($value) && !isset($options['flags'])) {
            $options['flags'] = \FILTER_REQUIRE_ARRAY;
        }

        if ((\FILTER_CALLBACK & $filter) && !(($options['options'] ?? null) instanceof \Closure)) {
            throw new \InvalidArgumentException(sprintf('A Closure must be passed to "%s()" when FILTER_CALLBACK is used, "%s" given.', __METHOD__, get_debug_type($options['options'] ?? null)));
        }

        return filter_var($value, $filter, $options);
    }

    /**
     * Returns an iterator for parameters.
     *
     * @return \ArrayIterator<string, mixed>
     */
    public function getIterator(): \ArrayIterator
    {
        return new \ArrayIterator($this->parameters);
    }

    /**
     * Returns the number of parameters.
     */
    public function count(): int
    {
        return \count($this->parameters);
    }
}

• [D] Exception
• [D] File
• [D] RateLimiter
• [D] Session
• [D] Test
• [F] AcceptHeader.php
  Delete
• [F] AcceptHeaderItem.php
  Delete
• [F] BinaryFileResponse.php
  Delete
• [F] CHANGELOG.md
  Delete
• [F] composer.json
  Delete
• [F] Cookie.php
  Delete
• [F] ExpressionRequestMatcher.php
  Delete
• [F] FileBag.php
  Delete
• [F] HeaderBag.php
  Delete
• [F] HeaderUtils.php
  Delete
• [F] InputBag.php
  Delete
• [F] IpUtils.php
  Delete
• [F] JsonResponse.php
  Delete
• [F] LICENSE
  Delete
• [F] ParameterBag.php
  Delete
• [F] README.md
  Delete
• [F] RedirectResponse.php
  Delete
• [F] Request.php
  Delete
• [F] RequestMatcher.php
  Delete
• [F] RequestMatcherInterface.php
  Delete
• [F] RequestStack.php
  Delete
• [F] Response.php
  Delete
• [F] ResponseHeaderBag.php
  Delete
• [F] ServerBag.php
  Delete
• [F] StreamedResponse.php
  Delete
• [F] UrlHelper.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?

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?

Yes, you can view and track your payment status in the account dashboard