php - 如何获取显示的数据库QUICKFIX上所有复选框的ID？

Question

我已经显示了数据库中的数据表，左侧有复选框。我想找到一种方法将复选框链接到问题编号 (ID)。当我点击提交时，我希望回显所选的 id。我非常希望有人能够选择他们想要的问题然后显示它们。

  <?php

    $con=mysqli_connect("####","####","#####","###");

   $result = mysqli_query($con,"SELECT * FROM q_and_a ");

 echo "<table border='1'>
  <tr>
<th>Add</th>
<th>#</th>
<th>Question</th>
<th>A</th>
<th>B</th>
<th>C</th>
<th>D</th>
<th>Answer</th>

</tr>";

while($row = mysqli_fetch_array($result))
 {
 echo "<tr>";

echo '<td><input type="checkbox" name="questions[]" value="$id"></td>';

echo "<td>" . $row['id'] . "</td>";
echo "<td>" . $row['question'] . "</td>";
echo "<td>" . $row['choiceA'] . "</td>";
echo "<td>" . $row['choiceB'] . "</td>";
echo "<td>" . $row['choiceC'] . "</td>";
echo "<td>" . $row['choiceD'] . "</td>";
echo "<td>" . $row['answer'] . "</td>";
echo "</tr>";
 }
 echo "</table>";

mysqli_close($con);

?>

提交按钮

<form  method="POST" action="makeTest.php">
<input type="submit" name="make" value="Make Test">
</form>

Answer 1

对您的代码进行一些编辑，然后它就会起作用。 1.通过添加非*字段来更改查询(以确保性能和显示顺序)

 $result = mysqli_query($con,"SELECT id,question,choiceA,choiceB,choiceC,choiceD,answer FROM q_and_a ");

然后在 while block 打开表单标签之前(HTML)

<?php 
 //above codes will be there as you show before 
echo '<form  method="POST" action="makeTest.php">';
while($row = mysqli_fetch_array($result)){
{ $id=$row['id'];  // initialize your id here, so as to pass it in checkbox too
 // then continue with your code
}
?>
<input type="submit" name="make" value="Make Test">
</form>

在 maketest.php 中，你可以使用 foreach 处理 ckeckbox，见下文

    foreach($_POST['questions'] as $questions){
                          //do your job

    }