hainan/app/Providers/DemandBiddingServiceProvider.php

<?php

namespace App\Providers;

use App\Models\Demand;
use App\Models\DemandProduct;
use App\Service\SmsService;
use Illuminate\Support\ServiceProvider;

class DemandBiddingServiceProvider extends ServiceProvider
{
    /**
     * Register services.
     *
     * @return void
     */
    public function register()
    {
        //
    }

    /**
     * Bootstrap services.
     *
     * @return void
     */
    public function boot()
    {
		DemandProduct::created(function ($order) {
			$demand = Demand::query()->with('publisher')->where('id',$order->demand_id)->first();
			if(!empty($demand->publisher->contact_phone)) {
				$smsConfig = config('sms.tencent');
				$sms = new SmsService();
				$sms->send($smsConfig['templates']['bidding'],['','$demand->id'],$demand->publisher->contact_phone);
			}
		});
    }
}