1. Go to this page and download the library: Download madmis/coingecko-api 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/ */
madmis / coingecko-api example snippets
$api = new CoingeckoApi();
$timestamp = $api->shared()->priceCharts(Api::BASE_ETH, Api::QUOTE_USD, Api::PERIOD_24HOURS, true));