v2board/app/Http/Controllers/PlanController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use App\Models\Plan;
use App\Models\User;

class PlanController extends Controller
{
    public function info (Request $request) {
        if (empty($request->input('plan_id'))) {
            abort(500, '参数错误');
        }
        $plan = Plan::find($request->input('plan_id'));
        if (!$plan) {
            abort(500, '该订阅不存在');
        }
        $user = User::find($request->session()->get('id'));
        if (!($plan->show || $user->plan_id == $plan->id)) {
            abort(500, '该订阅已售罄');
        }
        
        return response([
            'data' => $plan
        ]);
    }
}