1. Go to this page and download the library: Download goapi-io/php-sdk 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/ */
goapi-io / php-sdk example snippets
$client = new GOAPI\IO\Client(['api_key' => 'your_api_key']);
$marketDataIDX = $client->createStockIDX();