小编Bla*_*car的帖子

我收集了Laravel:

Collection {#450 ?
  #items: array:2 [?
    0 => Announcement {#533 ?}
    1 => Announcement {#553 ?}
  ]
}

这是相同的项目.如何删除其中一个？

完整代码是:

public function announcements()
    {

        $announcements = $this->categories_ann->map(function ($c) {
            return $c->announcements->map(function ($a) {
                $a->subsribed = true;

                return $a;
            });
        });

        $flattened = $announcements->groupBy("id")->flatten();

        return $flattened;
    }

我试着读为：

use Illuminate\Support\Facades\Config;

echo Config::set("services.sparkpost.secret");

它重现了一个错误