如何使用复选框

Question

exam_paper{ 
    exam_paper_id, 
    exam_paper_name 
} 

question{ 
    question_id, 
    question, 
    option1, 
    option2, 
    option3, 
    option4, 
    answer 
} 
exam_question_list{ 

    id, 
    exam_paper,id, 
    question_id 

} 

exampaper.php

<a href="addquestions_to_exampaper.php?id=<?php echo $row3["exam_paper_id"];?>"> 
     <button id="addques"><i class="fa fa-plus-circle"></i>&nbsp;Add Questions</button> 
     </a> 

addquestions_to_exampaper.php

   <?php 
       $sql= "SELECT * FROM question WHERE catergory_id=$catergory_id AND level_id=1"; 
       $result=mysqli_query($dbcon,$sql); 

       ?> 
<form method="post" action="addquestions_to_exampaper_action.php?exid=<?php echo $exam_paper_id;?>"> 

<table> 

    <caption>Easy Level Questions</caption> 

    <thead> 
    <tr> 
     <th scope="col">Question ID</th> 
     <th scope="col">Question</th> 
    </tr> 

    </thead> 

<tbody> 


<?php 
    while($row = mysqli_fetch_array($result)){ 
?> 
    <tr> 

     <td data-label="Question Id"><input name="question_id" value="<?php echo $row['question_id'];?>" readonly type="checkbox" /></td> 
     <td data-label="Question" style="text-align:left"><?php echo $row['question']; ?></td> 

    </tr> 

<?php 
    } 
    ?> 

    </tbody> 
</table> 

<input type="submit" value="Add Question" name="submit" id="submit" /> 

</form> 

addquestions_to_exampaper_action.php

来将数据添加到表行

<?php 
include '../../db/db_connection.php'; 

    if(isset($_POST['submit'])){ 
     $exam_paper_id=$_GET['exid']; 

     $question_id=$_POST['question_id']; 

$sql="INSERT INTO exam_question_list (exam_paper_id,question_id) VALUES ('$exam_paper_id','$question_id')"; 


     if (mysqli_query($dbcon,$sql)){ 

      header("Location: exampaper.php"); 

      exit(); 
     }else{ 
      $error=mysqli_error($dbcon); 
     } 



    } 
?> 

我有q问题池。 （问题表） 我需要通过选择复选框来添加问题，并且需要向问题论文添加问题。（exam_question_list表格）

当我选择复选框的数量并点击添加按钮时，只有一个复选框数据发送到'exam_question_list表'，其他选中的复选框数据没有消失。

如何解决此错误？

我想数据，如低于 exam_question_list

**id exam_paper_id question_id** 

1   1    12 
2   1    3 
3   1    45 
4   1    5 

Answer 1

在PHP代码中定义的名称作为数组

<td data-label="Question Id"><input name="question_id[]" value="<?php echo $row['question_id'];?>" readonly type="checkbox" /></td> 

获取复选框为阵列添加到表

//now loop them 
if(!empty($_POST['question_id'])) { 
    foreach($_POST['question_id'] as $check) { 
     echo $check; 
    } 
}