我有多个输入字段,每个字段有多个文件上传.
<?php for ($i = 0; $i < $total; $i++)
{
?>
<div class="col-md-3 addedClass">
<label>Vehicle Images</label>
<input type="file" name="vehicle_image[{{$i}}][]" multiple="multiple">
@if($errors->has('vehicle_image'))
<span class="help-block">
<strong>{{$errors->first('vehicle_image')}}</strong>
</span>
@endif
</div>
<?php } ?>
我在请求中有这样的文件:
"vehicle_image" => array:2 [▼
0 => array:2 [▼
0 => "citizenship.jpg"
1 => "logo_vehicle.png"
]
1 => array:2 [▼
0 => "ae backend.jpg"
1 => "logo_vehicle.png"
]
]
在这种情况下,我有2/2个文件的两个输入字段.当我尝试仅针对此类图像验证mime类型时:
$this->validate($request,[
'vehicle_image' => 'mimes:jpeg,png,bmp,tiff |max:4096'
],$messages[
// error messages
]);
我有以下错误:
ReservationController.php 67行中的FatalThrowableError:无法使用[]进行读取
有人可以告诉我上述代码有什么问题吗?
建议表示赞赏.
解决方法:
尝试删除空白的$messages数组,并为请求中的输入调用函数all().
$rules = [
'vehicle_image' => 'mimes:jpeg,png,bmp,tiff |max:4096'
];
$this->validate($request,$rules);
要显示默认错误消息,您将使用以下方法引发异常:
if ($validator->fails()) {
$this->throwValidationException(
$request, $validator
);
return redirect('VIEWPATH.VIEWNAME')->withErrors($validator)->withInput();
}
然后,要显示错误,您可以在刀片视图或模板中显示以下内容:
@if (count($errors) > 0)
<div class="alert alert-danger alert-dismissable fade in">
<a href="#" class="close" data-dismiss="alert" aria-label="close">×</a>
<h4>
<i class="icon fa fa-warning fa-fw" aria-hidden="true"></i>
<strong>Error!</strong> See error messages...
</h4>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
要么
@if(session()->has('errors'))
<div class="alert alert-danger fade in">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
<h4>Following errors occurred:</h4>
<ul>
@foreach($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif