php - 单选按钮无法与循环一起使用

Question

我有一个表格。在此，用户从单选按钮中选择值之一。从所有问题中我只能选择一个答案。但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>

表单被重定向到此 Controller 。

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。每个正确答案都会增加 1。 View :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>