/home/kueuepay/www/vendor/symfony/mime/Encoder/IdnAddressEncoder.php
<?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\Mime\Encoder;

/**
 * An IDN email address encoder.
 *
 * Encodes the domain part of an address using IDN. This is compatible will all
 * SMTP servers.
 *
 * Note: It leaves the local part as is. In case there are non-ASCII characters
 * in the local part then it depends on the SMTP Server if this is supported.
 *
 * @author Christian Schmidt
 */
final class IdnAddressEncoder implements AddressEncoderInterface
{
    /**
     * Encodes the domain part of an address using IDN.
     */
    public function encodeString(string $address): string
    {
        $i = strrpos($address, '@');
        if (false !== $i) {
            $local = substr($address, 0, $i);
            $domain = substr($address, $i + 1);

            if (preg_match('/[^\x00-\x7F]/', $domain)) {
                $address = sprintf('%s@%s', $local, idn_to_ascii($domain, \IDNA_DEFAULT | \IDNA_USE_STD3_RULES | \IDNA_CHECK_BIDI | \IDNA_CHECK_CONTEXTJ | \IDNA_NONTRANSITIONAL_TO_ASCII, \INTL_IDNA_VARIANT_UTS46));
            }
        }

        return $address;
    }
}
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.