<?php

namespace Faker\Extension;

/**
 * A class with some methods that may make building extensions easier.
 *
 * @experimental This class is experimental and does not fall under our BC promise
 */
final class Helper
{
    /**
     * Returns a random element from a passed array.
     */
    public static function randomElement(array $array)
    {
        if ($array === []) {
            return null;
        }

        return $array[array_rand($array, 1)];
    }

    /**
     * Replaces all hash sign ('#') occurrences with a random number
     * Replaces all percentage sign ('%') occurrences with a non-zero number.
     *
     * @param string $string String that needs to bet parsed
     */
    public static function numerify(string $string): string
    {
        // instead of using randomDigit() several times, which is slow,
        // count the number of hashes and generate once a large number
        $toReplace = [];

        if (($pos = strpos($string, '#')) !== false) {
            for ($i = $pos, $last = strrpos($string, '#', $pos) + 1; $i < $last; ++$i) {
                if ($string[$i] === '#') {
                    $toReplace[] = $i;
                }
            }
        }

        if ($nbReplacements = count($toReplace)) {
            $maxAtOnce = strlen((string) mt_getrandmax()) - 1;
            $numbers = '';
            $i = 0;

            while ($i < $nbReplacements) {
                $size = min($nbReplacements - $i, $maxAtOnce);
                $numbers .= str_pad((string) mt_rand(0, 10 ** $size - 1), $size, '0', STR_PAD_LEFT);
                $i += $size;
            }

            for ($i = 0; $i < $nbReplacements; ++$i) {
                $string[$toReplace[$i]] = $numbers[$i];
            }
        }

        return self::replaceWildcard($string, '%', static function () {
            return mt_rand(1, 9);
        });
    }

    /**
     * Replaces all question mark ('?') occurrences with a random letter.
     *
     * @param string $string String that needs to bet parsed
     */
    public static function lexify(string $string): string
    {
        return self::replaceWildcard($string, '?', static function () {
            return chr(mt_rand(97, 122));
        });
    }

    /**
     * Replaces hash signs ('#') and question marks ('?') with random numbers and letters
     * An asterisk ('*') is replaced with either a random number or a random letter.
     *
     * @param string $string String that needs to bet parsed
     */
    public static function bothify(string $string): string
    {
        $string = self::replaceWildcard($string, '*', static function () {
            return mt_rand(0, 1) === 1 ? '#' : '?';
        });

        return self::lexify(self::numerify($string));
    }

    private static function replaceWildcard(string $string, string $wildcard, callable $callback): string
    {
        if (($pos = strpos($string, $wildcard)) === false) {
            return $string;
        }

        for ($i = $pos, $last = strrpos($string, $wildcard, $pos) + 1; $i < $last; ++$i) {
            if ($string[$i] === $wildcard) {
                $string[$i] = call_user_func($callback);
            }
        }

        return $string;
    }
}

• [F] AddressExtension.php
  Delete
• [F] BarcodeExtension.php
  Delete
• [F] BloodExtension.php
  Delete
• [F] ColorExtension.php
  Delete
• [F] CompanyExtension.php
  Delete
• [F] CountryExtension.php
  Delete
• [F] DateTimeExtension.php
  Delete
• [F] Extension.php
  Delete
• [F] ExtensionNotFound.php
  Delete
• [F] FileExtension.php
  Delete
• [F] GeneratorAwareExtension.php
  Delete
• [F] GeneratorAwareExtensionTrait.php
  Delete
• [F] Helper.php
  Delete
• [F] NumberExtension.php
  Delete
• [F] PersonExtension.php
  Delete
• [F] PhoneNumberExtension.php
  Delete
• [F] UuidExtension.php
  Delete
• [F] VersionExtension.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