拒绝数组中的某些索引参数

Question

给定一个数组，其中每个索引都有某些键值对，如何选择某些键值对并拒绝其他键值对。

$channels = Channel::get()->toArray();

这将产生以下数组：

"channels": [

    {

        "id": 1,

        "name": "Info Release",

        "slug": "info-release",

        "desc": "Contains blah blah.",

        "access_level": "0",

        "created_at": "2018-12-02 01:23:50",

        "updated_at": "2018-12-05 07:54:41"

    },

    {

        "id": 11,

        "name": "Casual News",

        "slug": "casual-news",

        "desc": "Contains blah blah.",

        "access_level": "0",

        "created_at": "2018-12-05 05:34:50",

        "updated_at": "2018-12-05 07:54:32"

    },

    {

        "id": 12,

        "name": "haha",

        "slug": "haha",

        "desc": "Contains blah blah.",

        "access_level": "0",

        "created_at": "2018-12-29 23:27:16",

        "updated_at": "2018-12-29 23:27:16"

    }

],

将该数组变成这样的最佳方法是什么：

"channels": [

    {

        "id": 1,

        "name": "Information Release",

        "slug": "information-release",

    },

    {

        "id": 11,

        "name": "Casual News",

        "slug": "casual-news",

    },

    {

        "id": 12,

        "name": "haha",

        "slug": "haha",

    }

],

所以如果我写

$channels[0]->id

它会吐出来 1

Answer 1

你能试试这个吗$viewFileds = ['id', 'name', 'slug'];$channels = Channel::get()                    ->map(function ($each) use ($viewFileds) {                        return Arr::only($each, $viewFileds);                    }); 它将仅通过在 $viewFileds希望能帮助到你