1. Go to this page and download the library: Download kalprajsolutions/bitly 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/ */
$url = Bitly::url('http://example.com')
->proxy([
'http' => 'http://localhost:8125', // Use this proxy with "http"
'https' => 'http://localhost:9124', // Use this proxy with "https"
])
->get();