Unofficial PHP SDK for YunTu express (https://www.yunexpress.com/)
composer require dakalab/yun-express
$client = new Dakalab\YunExpress\Client($account, $secret);
try {
$tracking = $client->getTrackingInfo($trackingNumber);
print_r($tracking);
} catch (\Exception $e) {
echo $e->getMessage();
}