Question

我有一个可以处理数组映射的集合。但是，只有在集合中只有一个对象的情况下，它才起作用。

我的功能：

$vacancies->map(function ($vacancie) {
            $vacancie['url'] = url(route('frontendShowVacancies', ['companyTitle' => urlencode($vacancie->company->title), 'vacancie' => $vacancie->id]));
            $vacancie['company']['images'][0]['url'] = url(route('companyImage', ['uuid' => $vacancie['company']['images'][0]['uuid']]));
            $vacancie['company']['image'] = $vacancie['company']['images'][0];
            $vacancie['company']['images'] = '';
            $vacancie['startDate'] = Carbon::parse($vacancie['startDate'])->format('d.m.Y');
            $vacancie['endDate'] = Carbon::parse($vacancie['endDate'])->format('d.m.Y');
            return $vacancie;
        });

我得到：

Uninitialized string offset: 0

它引用函数（$vacancie['company']['images'][0]['url']...）中的第二行。我知道$vacancie['company']['images']是一个填充了0的数组。到底是怎么回事？为什么我会收到错误消息？

Laravel地图仅适用于第一个循环

0 个答案: