微服务架构在PHP功能开发中有哪些最佳实践？

<?php
class UserService {
  public function getUser($userId) {
    // 从数据库中获取用户信息
    $user = $this->db->getUserById($userId);
    return $user;
  }
}

<?php
class OrderService {
  public function createOrder($userId, $productId) {
    // 调用用户服务获取用户信息
    $user = $this->userService->getUser($userId);

    // 创建订单并返回订单信息
    $order = new Order($user, $productId);
    return $order;
  }
}

<?php
use SensioLabsConsulServiceFactory;

// 创建Consul的服务工厂
$serviceFactory = new ServiceFactory();

// 创建一个Consul客户端
$consul = $serviceFactory->get('default');

// 注册服务
$agent = $consul->getAgent();
$agent->registerService([
  'ID' => 'userService',
  'Name' => 'userService',
  'Tags' => ['php', 'microservice'],
  'Address' => 'localhost',
  'Port' => 8080,
]);

// 查询服务
$catalog = $consul->getCatalog();
$services = $catalog->getService('userService');

print_r($services);

<?php
use PredisClient;

// 创建一个Redis客户端
$redis = new Client();

// 向消息队列中推送一个消息
$message = ['action' => 'createOrder', 'data' => ['userId' => 1, 'productId' => 2]];
$redis->lpush('orderQueue', json_encode($message));

FROM php:7.4-apache

# 安装PHP扩展
RUN docker-php-ext-install pdo_mysql

# 将应用程序拷贝到容器中
COPY . /var/www/html

version: '3'

services:
  userService:
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - 8080:80
    volumes:
      - .:/var/www/html

  orderService:
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - 8081:80
    volumes:
      - .:/var/www/html