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