显示刀片文件时出现错误 '' count(): 参数必须是实现 Countable ''

Question

我在返回网站上的视图时遇到问题，我不断收到此错误ErrorExceptioncount(): Parameter must be an array or an object that implements Countable (View: C:\xampp\htdocs\cargo\resources\views\shipment\single.blade.php)这个错误指向我的刀片文件中导致该错误的部分，下面是我的视图刀片文件 <div class="card" >    <div class="card-body ">        @if(count($shipment) >0)       @foreach($shipment as $shipment)                <div class="shipment-number">        <span class="title" style="display: block; font-size: 25px!important;">{{$shipment->tracking_code }}</span>    </div><!-- Track_Num --></div><br><br><div id="shipper-info" class="row" >        <div class="col-md-6 detail-section">            <p class="shipper details"><strong>Shipper's Information</strong></p>            <div class="shipper details">            <p><span class="label">Shipper Name : </span>{{$shipment->sender_name }}</p>            <p><span class="label">Phone Number : </span>{{$shipment->telephone }}</p>            <p><span class="label">Email : </span>{{$shipment->sender_email }}</p>            <p><span class="label">Address : </span>{{$shipment->sender_address }}</p>                    </div>    </div>            <div class="col-md-6 detail-section">            <p class="shipper details"><strong>Receiver's Information</strong></p>            <div class="receiver details">            <p><span class="label">Receiver Name : </span>{{$shipment->receiver_name }}</p>            <p><span class="label">Phone Number : </span>{{$shipment->receiver_telephone }}</p>            <p><span class="label">Address : </span>{{$shipment->receiver_address }}</p>            <p><span class="label">Email : </span>{{$shipment->receiver_email }}</p>                </div>    </div>        <div class="clear-line"></div></div>@endforeach@esle@endif并且错误指向此部分@if(count($shipment) >0)       @foreach($shipment as $shipment)

Answer 1

您不需要对单个记录应用循环，因为您可以看到它是单个记录。

<div class="card" >

        <div class="card-body ">

    

                <div class="shipment-number">

        <span class="title" style="display: block; font-size: 25px!important;">{{$shipment->tracking_code }}</span>

    </div><!-- Track_Num -->

</div>

<br><br>

<div id="shipper-info" class="row" >

        <div class="col-md-6 detail-section">

            <p class="shipper details"><strong>Shipper's Information</strong></p>

            <div class="shipper details">

            <p><span class="label">Shipper Name : </span>{{$shipment->sender_name }}</p>

            <p><span class="label">Phone Number : </span>{{$shipment->telephone }}</p>

            <p><span class="label">Email : </span>{{$shipment->sender_email }}</p>

            <p><span class="label">Address : </span>{{$shipment->sender_address }}</p>            

        </div>

    </div>

            <div class="col-md-6 detail-section">

            <p class="shipper details"><strong>Receiver's Information</strong></p>

            <div class="receiver details">

            <p><span class="label">Receiver Name : </span>{{$shipment->receiver_name }}</p>

            <p><span class="label">Phone Number : </span>{{$shipment->receiver_telephone }}</p>

            <p><span class="label">Address : </span>{{$shipment->receiver_address }}</p>

            <p><span class="label">Email : </span>{{$shipment->receiver_email }}</p>        

        </div>

    </div>

        <div class="clear-line"></div>

</div>

Answer 2

您的调用->first()将返回一批货件而不是一批货件，您可以使用->get()或->paginate()获取模型的集合，然后在您的视图中迭代它们。

Answer 3

获取数据时删除->first()，->get() or ->paginate(x)改为使用，这样您就可以获得集合。

在刀片文件中，foreach循环使用相同的变量作为集合和单个数据

@foreach($shipment as $shipment)

我建议您使用$shipments集合作为变量，并使用 $shipment 作为实例。

x 只是一个数字