为foreach()提供的无效参数-其余的都正常工作

Question

我正在开发一个像laravel instagram这样的网站，一切都很顺利，直到我实现了foreach命令

这是我的密码：

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row">
        <div class="col-3 p-5">
            <img src="/images/simbolomax.jpg" class="rounded-circle">
        </div>
        <div class="col-9 pt-5">
            <div class="d-flex justify-content-between align-items-baseline">
                <h1 class="p-2">{{ $user->username }}</h1>
                <a href="/p/create">Aiciona nova receita</a>
            </div>
            <div class="d-flex">
                <div class="pe-5"><strong>153</strong> receitas</div>
                <div class="pe-5"><strong>23k</strong> seguidores</div>
                <div class="pe-5"><strong>212</strong> seguindo</div>
            </div>
            <div class="pt-4">{{ $user->profile->description }}</div>
        </div>
    </div>
    <div class="row pt-5">
        @foreach($user->posts as $post)
            <div class="col-4">
                <img src="/storage/{{$post->image}}" class="w-100" style="height:100%">
            </div>
        @endforeach
    </div>
</div>
@endsection

错误是：Invalid argument supplied for foreach() (View: C:\projetos\easymeal\resources\views\profiles\index.blade.php)

我搞不懂，派人来帮忙！

Answer 1

如果有一个用户没有帖子..。出错了。所以..。在@foreach之前检查用户的帖子。@if(计数($user->post)>0).@foreach

Answer 2

尝尝这个

@if ($user->posts->isNotEmpty())
    @foreach ($user->posts as $item)
        <div class="col-4">
            <img src="/storage/{{$post->image}}" class="w-100" style="height:100%">
        </div>
    @endforeach
@endif