1. Go to this page and download the library: Download rainedot/php-nl-market 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/ */
rainedot / php-nl-market example snippets
$api = new \Rainedot\PhpNlMarket\MarketAPI('YOUR_API_KEY', 1);
echo $api->getBalance();