Question

我有两个数组，我想在循环中使用它我怎么做呢

控制器代码是：

public function showJobCategoryContent($id)
{
    $jobsInfoById = DB::table('jobs')->where('category_id', '=', $id)->where('published', '=', 1)->paginate(3);

    $jobsInfoById = $jobsInfoById->map(function ($job) {
        return [
            'created_at' => Carbon::parse($job->created_at)->addDays(30)->toDateTimeString()
        ];
    });

    $dates = [];
    $dates[] = $jobsInfoById->pluck('created_at');
    $jobsInfosById = [];
    $jobsInfosById[] = DB::table('jobs')->where('category_id', '=', $id)->where('published', '=', 1)->paginate(3);

    return view('front.category-content.job-category-content',[
        'jobsInfosById'=> $jobsInfosById,
        'dates'=>$dates
    ]);
}

如何在循环中使用这两个数组

我的观点页面：

@php
    $arrayData = array_merge($jobsInfosById, $dates);
@endphp

@foreach($arrayData as $jobInfoById)
    <li>
        <h4>{{$jobInfoById->company_name}}</h4>
        <h5 class="deadline">Deadline:<b>{{ date('d F, Y', strtotime($jobInfoById->date)) }}</b></h5>
    </li>
@endforeach

显示错误未定义属性：
照亮\分页\ LengthAwarePaginator :: $ COMPANY_NAME

{ $ arrayData值如下：

阵（ [0] =＆gt; Illuminate \ Pagination \ LengthAwarePaginator对象（ [总计：受保护] =＆gt; 3 [lastPage：protected] =＆gt; 1 [items：protected] =＆gt;照亮\支持\集合对象（ [items：protected] =＆gt;排列（ [0] =＆gt; stdClass对象（ [id] =＆gt; 3

                                [company_name] => Khulan Computer house

                                [published] => 1
                                [created_at] => 2017-10-22 15:25:54
                                [updated_at] => 2017-10-24 11:00:52
                            )

                        [1] => stdClass Object
                            (
                                [id] => 4

                                [company_name] => Khulan Computer house

                                [published] => 1
                                [created_at] => 2017-10-22 15:46:44
                                [updated_at] => 2017-10-24 11:00:41
                            )

                        [2] => stdClass Object
                            (
                                [id] => 11

                                [company_name] => Computer Lab

                                [published] => 1
                                [created_at] => 2017-10-24 08:01:00
                                [updated_at] => 2017-10-24 10:53:57
                            )

                    )

            )

        [perPage:protected] => 3
        [currentPage:protected] => 1
        [path:protected] => http://localhost/jobs-zone/public/category-content/job-category-content/4
        [query:protected] => Array
            (
            )

        [fragment:protected] => 
        [pageName:protected] => page
    )

[1] => Illuminate\Support\Collection Object
    (
        [items:protected] => Array
            (
                [0] => 2017-11-21 15:25:54
                [1] => 2017-11-21 15:46:44
                [2] => 2017-11-23 08:01:00
            )

    )

）[！[在此输入图像说明] [1]] [1]

[1]：

Answer 1

你应该试试这个：

更改您的视图代码可能会返回数组。

@foreach($arrayData as $jobInfoById)

    print('<pre style="color:red;">');
    print_r($jobInfoById);
    print('</pre>');
    exit;

    <li>
        <h4>{{$jobInfoById['company_name']}}</h4>
        <h5 class="deadline">Deadline:<b>{{ date('d F, Y', strtotime($jobInfoById->date)) }}</b></h5>
    </li>
@endforeach

Answer 2

您正在创建一个数组并在数组的元素0上进行分配，并且您执行了2次查询。所以我的想法是：

public function showJobCategoryContent($id)
{
    $dates = DB::table('jobs')->select('created_at')->where('category_id', '=', $id)->where('published', '=', 1)->paginate(3);

    $jobsInfosById = DB::table('jobs')->where('category_id', '=', $id)->where('published', '=', 1)->paginate(3);

    return view('front.category-content.job-category-content',[
        'jobsInfosById'=> $jobsInfosById,
        'dates' => $dates
    ]);
}

我怎么做可以在循环中使用两个数组

2 个答案: