/home/kueuepay/public_html/vendor/fakerphp/faker/src/Faker/Provider/Barcode.php
<?php

namespace Faker\Provider;

use Faker\Calculator\Ean;
use Faker\Calculator\Isbn;

/**
 * @see http://en.wikipedia.org/wiki/EAN-13
 * @see http://en.wikipedia.org/wiki/ISBN
 */
class Barcode extends Base
{
    private function ean($length = 13)
    {
        $code = static::numerify(str_repeat('#', $length - 1));

        return $code . Ean::checksum($code);
    }

    /**
     * Utility function for computing EAN checksums
     *
     * @deprecated Use \Faker\Calculator\Ean::checksum() instead
     *
     * @param string $input
     *
     * @return int
     */
    protected static function eanChecksum($input)
    {
        return Ean::checksum($input);
    }

    /**
     * ISBN-10 check digit
     *
     * @see http://en.wikipedia.org/wiki/International_Standard_Book_Number#ISBN-10_check_digits
     * @deprecated Use \Faker\Calculator\Isbn::checksum() instead
     *
     * @param string $input ISBN without check-digit
     *
     * @throws \LengthException When wrong input length passed
     *
     * @return string
     */
    protected static function isbnChecksum($input)
    {
        return Isbn::checksum($input);
    }

    /**
     * Get a random EAN13 barcode.
     *
     * @return string
     *
     * @example '4006381333931'
     */
    public function ean13()
    {
        return $this->ean(13);
    }

    /**
     * Get a random EAN8 barcode.
     *
     * @return string
     *
     * @example '73513537'
     */
    public function ean8()
    {
        return $this->ean(8);
    }

    /**
     * Get a random ISBN-10 code
     *
     * @see http://en.wikipedia.org/wiki/International_Standard_Book_Number
     *
     * @return string
     *
     * @example '4881416324'
     */
    public function isbn10()
    {
        $code = static::numerify(str_repeat('#', 9));

        return $code . Isbn::checksum($code);
    }

    /**
     * Get a random ISBN-13 code
     *
     * @see http://en.wikipedia.org/wiki/International_Standard_Book_Number
     *
     * @return string
     *
     * @example '9790404436093'
     */
    public function isbn13()
    {
        $code = '97' . self::numberBetween(8, 9) . static::numerify(str_repeat('#', 9));

        return $code . Ean::checksum($code);
    }
}
Best Practice

Best Practices

To ensure a smooth integration process and optimal performance, follow these best practices:

  1. Use secure HTTPS connections for all API requests.
  2. Implement robust error handling to handle potential issues gracefully.
  3. Regularly update your integration to stay current with any API changes or enhancements.