'shunfeng', 'num' => $testNumber, 'phone' => $phone, 'resultv2' => '1', ]; $paramJson = json_encode($paramArr, JSON_UNESCAPED_UNICODE); $sign = strtoupper(md5($paramJson . $key . $customer)); $postData = http_build_query([ 'customer' => $customer, 'param' => $paramJson, 'sign' => $sign, ]); echo "请求参数已生成\n"; echo "Customer: " . substr($customer, 0, 8) . "****\n"; echo "Sign: " . substr($sign, 0, 8) . "****\n\n"; echo "如需测试实际查询,请:\n"; echo "1. 将上面的 testNumber 替换为真实运单号\n"; echo "2. 将 phone 替换为收件人手机后4位\n"; echo "3. 在浏览器或前端系统中测试查询功能\n\n"; echo "===========================================\n"; echo "检查完成\n"; echo "===========================================\n";