$request->validate([
            'room_id' => 'required|integer|exists:room,id',
            'gift_id' => 'required|integer|exists:goods_gift,id',
            'target_member_id' => ['required',new exists_member_id],
            'number' => 'required|integer',
        ], [
        ]);

我建了一个rule文件

php artisan make:rule exists_member_id

还有一个方法是

        Validator::extend('exists_member_id', function($attribute, $value, $parameters) {
            $target_member_id_arr = explode(",", $value);
            foreach ($target_member_id_arr as $target_user_id) {
                $ret =Member::query()
                    ->where('id',$target_user_id)
                    ->exists();
                if(!$ret){
                    return false;
                }
            }
            return true;
        });

        $request->validate([
            'room_id' => 'required|integer|exists:room,id',
            'gift_id' => 'required|integer|exists:goods_gift,id',
            'target_member_id' => 'required|exists_member_id',
            'number' => 'required|integer',
        ], [
        ]);

1.使用 Validator::extend

2.使用 php artisan make:rule exists_member_id

请问一下laravel如何优雅的使用表单验证 用 extend 还是用 rule