1. Go to this page and download the library: Download infamoustrey/smartsheet 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/ */
infamoustrey / smartsheet example snippets
$smartsheetClient = new \Smartsheet\SmartsheetClient([ 'token' => 'yourapitoken' ]);
$smartsheetClient->getSheet('sheetid');