Question

我的数据库中有重复的任务，所以我的foreach中没有任何带有thir标签的重复任务

@foreach ($Tag->Tasks as $Task)


  <li> Task :: {{ $Task->task_name }} </li>
   @foreach ($Task->tasktags as $TaskTag)
  <li> Task Tags :: {{ $TaskTag->name }} </li>

   @endforeach
@endforeach

Answer 1

在控制器中使用（在视图中插入参数之前）array_unique函数

更多：http://php.net/manual/en/function.array-unique.php

如果您有收集对象： https://laravel.com/docs/master/collections#method-unique

Answer 2

查看独特的方法here

@foreach ($Tag->Tasks as $Task)

   <li> Task :: {{ $Task->task_name }} </li>

   $uniqueTaskTags = $Task->tasktags->unique();

   @foreach ($uniqueTaskTags as $TaskTag)
      <li> Task Tags :: {{ $TaskTag->name }} </li>
   @endforeach

@endforeach

Answer 3

使用此选项，不会打印重复数据

{!! $Tag->Tasks = $Tag->Tasks->unique(); !!}
@foreach ($Tag->Tasks as $Task)
    <li> Task :: {{ $Task->task_name }} </li>
    {!! $Task->tasktags = $Task->tasktags->unique(); !!}
    @foreach ($Task->tasktags as $TaskTag)
        <li> Task Tags :: {{ $TaskTag->name }} </li>
    @endforeach
 @endforeach

从foreach中删除重复的值

3 个答案: