Question

我有一张表格。在此，用户从单选按钮中选择一个值。从所有问题我只能选择一个答案。但是循环应该允许从每个问题中选择一个答案。

 <form method="POST" action="{{url('quiz/check')}}"
{!! csrf_field() !!} 
@foreach ($quiz as $q)
    {{ $q->qid }}.  
    {{ $q->question }}<br>
    <input type='radio' name='mycheck[".$q->qid."]' value='1'>     
    {{ $q->opt1 }}<br>
    <input type='radio' name='mycheck[".$q->qid."]' value='2'>     
    {{ $q->opt2 }}<br>
    <input type='radio' name='mycheck[".$q->qid'."]' value='3'>    
    {{ $q->opt3 }}<br>
    <input type='radio' name='mycheck[".$q->qid'."]' value='4'>   
    {{ $q->opt4 }}<br><br>

@endforeach        
    <button type="submit" class="btn btn-default">Get result</button>
                            </form>

将表单重定向到此控制器。

public function check(Request $request)
  {
    $count=0; 
    $input=$request->all();
        $ch = DB::select('select * from quiz where category="gk" ');
        return View('quiz.check',['quiz'=>$ch,'input'=>$input,'count'=>$count]);     

 }

我有$ count变量0.每个正确答案应该增加1。查看：quiz.check

@foreach ($quiz as $q)

   @if($input['mycheck'][$q->qid]==$q->answer)
    {
        $count=$count+1;
    }
@endif

@endforeach        

You scored {{$count}}.

Answer 1

你必须这样使用：

<form method="POST" action="{{url('quiz/check')}}"
{!! csrf_field() !!} 
@foreach ($quiz as $q)
{{ $q->qid }}.  
{{ $q->question }}<br>
<input type='radio' name='mycheck_{{$q->qid}}' value='1'>     
{{ $q->opt1 }}<br>
<input type='radio' name='mycheck_{{$q->qid}}' value='2'>     
{{ $q->opt2 }}<br>
<input type='radio' name='mycheck_{{$q->qid}}' value='3'>    
{{ $q->opt3 }}<br>
<input type='radio' name='mycheck_{{$q->qid}}' value='4'>   
{{ $q->opt4 }}<br><br>

@endforeach        
<button type="submit" class="btn btn-default">Get result</button>
                        </form>

Answer 2

这就是我应该做的事情。

<input type='radio' name='mycheck[{{$q->qid}}]' value='1'>

在控制器中：

public function check(Request $request)
  {
    $count=0; 
    $input=$request->all();
    $mycheck=$input['mycheck'];
        $ch = DB::select('select * from quiz where category="gk" ');
        return View('quiz.check',['quiz'=>$ch,'input'=>$input,'count'=>$count,'mycheck'=>$mycheck]);     

 }

在视图中：

@foreach ($quiz as $q)

   @if(array_key_exists($q->qid, $mycheck) && $mycheck[$q->qid]==$q->answer)
      {{$count=$count+1}}

@endif

@endforeach        

You scored {{$count}}.

单选按钮不使用循环

2 个答案: