![](/img/trans.png)
[英]I know why I am getting unexpected { token but I don't know how to fix it when my php needs to send collection of datas to javascript
[英]Why my collection is empty when I send it?
我正在使用Laravel 5,我在Controller中使用了以下方法:
/**
* Display the specified resource.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function show($id)
{
$authUser = Auth::user();
$sharesList = Group::find($id)->shares->sortByDesc('created_at');
$groupList = $authUser->groupsAsMember->where('id', '<>', $id);
$group = $authUser->groups->find($id);
$postList = Group::find($id)->posted->sortByDesc('created_at');
$postsGroups = PostGroup::where('group_id', $id)->with('commented')->get();
//$commentsList;
foreach ($postsGroups as $postGroup) {
$commentsList = $postGroup->commented;
//dd($commentsList);
}
//dd($commentsList);
return view('Pages.Group.detail', ['sharesList' => $sharesList, 'groupList' => $groupList, 'theGroup' => $group, 'postList' => $postList, 'commentsList' => $commentsList]);
}
问题是$commentsList
集合,如果我在@foreach中放入一个dd($commentsList)
,我可以看到里面有我想要的元素,但是如果我把dd($commentsList)
放在foreach之外(之后) @endforeach)$ commentsList为空,它到达我的HTML页面为空,我该如何解决? 我试着把$commentsList;
在@foreach循环之前,但仍然无法正常工作。
编辑
您应该使用每个循环覆盖它,同时应添加新的数组元素。 尝试这个 :
/**
* Display the specified resource.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function show($id)
{
$authUser = Auth::user();
$sharesList = Group::find($id)->shares->sortByDesc('created_at');
$groupList = $authUser->groupsAsMember->where('id', '<>', $id);
$group = $authUser->groups->find($id);
$postList = Group::find($id)->posted->sortByDesc('created_at');
$commentsList = collect();
$postsGroups = PostGroup::where('group_id', $id)->with('commented')->get();
foreach ($postsGroups as $postGroup) {
foreach($postGroup->commented as $commentPost) {
$commentsList->push($commentPost);
}
}
//dd($commentsList);
return view('Pages.Group.detail', ['sharesList' => $sharesList, 'groupList' => $groupList, 'theGroup' => $group, 'postList' => $postList, 'commentsList' => $commentsList]);
}
正如您在评论中提到的那样,您需要收集数组,因此首先初始化注释列表:
$commentsList = [];
接着:
foreach ($postsGroups as $postGroup) {
$commentsList[] = $postGroup->commented;
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.