1. Go to this page and download the library: Download parceladousa/gateway 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/ */
parceladousa / gateway example snippets
use Parceladousa\ParceladoUSA;
Key',
'merchantCode',
ParceladoUSA::SANDBOX,
"https://urlcallback"
);