Laravel
PHP功能求正确率，思路是比较选择答案和正确答案的值是否相等，如果相等$a=1不相等$a=0,然后把每道题的$c进行相加，在除总共的题目数，但是我现在不会累加每道题的$c请大神帮下吗 ？
码：
@foreach($questions as $question)
<tbody>
<tr>
<td>{{$question->q_number}}</td>
<td> <?php $ans = [];
foreach($answer_lists as $key=>$answer_list)
{ $ans[$answer_list['hw_question_id']] = $answer_list['selected_answer']; } ?>
{{ empty($ans[$question->id]) ? '' : $ans[$question->id] }}
<?php if($ans[$question->id] == $question['answer'])
{ $a = 1; }else{ $a = 0; } ?> </td>
<td>{{$question->answer}}</td> </tr>
</tbody>
$c 表示？{{$question->answer}}