实时广播与 Reverb (Broadcasting)

在现代 Web 应用中，WebSocket 用于实现实时通知、在线聊天和即时数据大屏。Laravel 提供了官方第一方 WebSocket 服务器 Laravel Reverb，无需额外依赖外部付费服务。

创建可广播事件

namespace App\Events;

use App\Models\Order;
use Illuminate\Broadcasting\Channel;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Foundation\Events\Dispatchable;

class OrderShipped implements ShouldBroadcast
{
    use Dispatchable;

    public function __construct(public Order $order) {}

    public function broadcastOn(): array
    {
        return [
            new PrivateChannel('orders.'.$this->order->user_id),
        ];
    }
}

---

前端接收广播 (Laravel Echo)

import Echo from 'laravel-echo';

window.Echo.private(`orders.${userId}`)
    .listen('OrderShipped', (e) => {
        console.log('订单状态更新：', e.order);
    });