1. Go to this page and download the library: Download tapp/select-country-code library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
tapp / select-country-code example snippets
use Tapp\SelectCountryCode\SelectCountryCode;
SelectCountryCode::make(__('Country Code')),