use Binance\Client\Spot\Api\SpotRestApi;
use Binance\Client\Spot\SpotRestApiUtil;
// set up a client array
$configurationBuilder = SpotRestApiUtil::getConfigurationBuilder();
// define the proxies
$proxies = [
'http' => 'http://localhost:8080',
'https' => 'http://localhost:8080',
];
$configurationBuilder->setProxy($proxies);
$api = new SpotRestApi($configurationBuilder->build());