【发布时间】：2018-08-19 03:30:12
【问题描述】：
我在迭代对象（如下）时遇到了一些麻烦，因为它具有主要的 User 数据，然后是 profile、jobs 和 照片 数组。
我收到了错误Invalid argument supplied for foreach()
在此先感谢您的帮助，因为我似乎陷入了心理循环，找不到我做错了什么。
在 Controller i 中调用 DB：
$team = \App\User::where('users.state', 1)->with('profile','jobs','photos')->get();
$team->jsonSerialize();
我在视图中为携带给我错误的对象的变量循环所做的工作
<li>
<a href="/{!! str_slug(trans('menus.lawyers'), '-') !!}/{!! str_slug(trans('global.words.partners')) !!}" title="{!! trans('global.words.partners') !!}">{!! trans('global.words.partners') !!}</a>
<ul class="dropdown">
@foreach($team as $member)
@foreach($member->jobs as $jobs)
// just display if partner | socio
@if ($jobs->slug== 'socio' || $jobs->slug == 'partner')
@foreach($member->profile as $profile)
<li>
<a href="/{!! str_slug(trans('global.words.lawyer_male'), '-') !!}/{!! $member->profile->full_name_slug !!}" title="{!! $member->profile->full_name !!}"><img class="avatar" src="{{ asset('/images/staff/thumbs/'.$member->photos[3]->filename) }}" alt="{!! $member->profile->full_name !!}"> {!! $member->profile->full_name !!}
</a>
</li>
@endforeach
@endif
@endforeach
@endforeach
</ul>
</li>
对象（简化版）：
0 => array:15 [▼
"id" => 2
"guid" => "0b6e0ad2-7daa-4c2b-907a-d095ab577851"
"name" => "John Doe"
"slug" => "john-doe"
"email" => "mp@testingsite.com"
"state" => 1
"ordering" => 0
"created_by" => 1
"updated_by" => null
"deleted_by" => null
"created_at" => "2018-02-12 19:59:47"
"updated_at" => "2018-02-12 19:59:52"
"profile" => array:23 [▼
"id" => 2
"user_id" => 2
"full_name" => "John Doe McNamara"
"full_name_slug" => "john-doe-mcnamara"
"short_name" => "John Doe"
"short_name_slug" => "john-doe-mcnamara"
"gender" => "male"
"birth_date" => "1973-05-05"
"work_start" => "2000-01-01"
"work_end" => null
"biography" => "John Doe started the firm in 1900."
"experience" => "A couple of years"
"education" => """
UCLA;\n
Berkley
"""
"affiliations" => ""
"notes" => ""
"hits" => 3
"state" => 1
"ordering" => 0
"created_by" => 1
"updated_by" => null
"deleted_by" => null
"created_at" => "2018-02-12 20:07:00"
"updated_at" => "2018-02-24 12:32:52"
]
"jobs" => array:2 [▼
0 => array:15 [▼
"id" => 1
"guid" => "45f91a68-d219-42b1-8980-8cb77d6688b4"
"type" => "Lawyer"
"slug" => "lawyer"
"department" => "Law"
"notes" => null
"language" => "en"
"state" => 1
"ordering" => 4
"created_by" => 1
"updated_by" => null
"deleted_by" => null
"created_at" => "2018-02-11 01:43:04"
"updated_at" => null
"pivot" => array:2 [▼
"user_id" => 2
"job_id" => 1
]
]
1 => array:15 [▼
"id" => 11
"guid" => "fcf9f310-eeb1-4ff4-b133-6c80d6bf3b7f"
"type" => "Partner"
"slug" => "partner"
"department" => "Law"
"notes" => null
"language" => "en"
"state" => 1
"ordering" => 1
"created_by" => 1
"updated_by" => null
"deleted_by" => null
"created_at" => "2018-02-11 01:49:38"
"updated_at" => null
"pivot" => array:2 [▼
"user_id" => 2
"job_id" => 11
]
]
]
"photos" => array:4 [▼
0 => array:14 [▼
"id" => 5
"guid" => null
"user_id" => 2
"type" => "profile"
"directory" => "staff"
"subdirectory" => "profile"
"filename" => "john-doe@1-100.jpg"
"state" => 1
"ordering" => 0
"created_by" => 1
"updated_by" => null
"deleted_by" => null
"created_at" => "2018-02-12 20:03:31"
"updated_at" => null
]
1 => array:14 [▼
"id" => 6
"guid" => null
"user_id" => 2
"type" => "bgs"
"directory" => "staff"
"subdirectory" => "bgs"
"filename" => "john-doe@1-100.jpg"
"state" => 1
"ordering" => 0
"created_by" => 1
"updated_by" => null
"deleted_by" => null
"created_at" => "2018-02-12 20:03:49"
"updated_at" => null
]
2 => array:14 [▶]
3 => array:14 [▶]
]
]
1 => array:15 [▶]
2 => array:15 [▶]
3 => array:15 [▶]
4 => array:15 [▶]
5 => array:15 [▶]
6 => array:15 [▶]
7 => array:15 [▶]
8 => array:15 [▶]
9 => array:15 [▶]
10 => array:15 [▶]
11 => array:15 [▶]
12 => array:15 [▶]
13 => array:15 [▶]
]
【问题讨论】：
-
我不知道为什么会这样。尝试找出哪个
foreach特别会导致该错误。但是你打电话给$team->jsonSerialize();有什么特别的原因吗？我不认为它在做任何事情。 -
我尝试不调用任何方法并获取对象，尝试了
->toArray()和现在的->jsonSerialize();来确定这是否可能是原因之一。 -
不要调用这些。查询会返回 Laravel
collection，这在客观上基本优于数组。 JSON 没有意义，因为您将它与 PHP 一起使用。另外，我很确定它实际上没有做任何事情，因为您需要明确覆盖$users对象。无论哪种方式，请尝试找出导致错误的foreach。您可能在错误消息中有缓存视图。在大多数现代文本编辑器中，您可以使用Ctrl + P导航到它并输入前几个字符。 -
看起来
@foreach($member->profile as $profile)循环出现错误 -
为了让它工作，我发现我不需要
@foreach($member->profile as $profile)循环。那么我必须调用的是，例如，{!! $member->profile['full_name'] !!}，这样它就可以工作了。
标签： laravel object foreach view iterate