我正在尝试使用复选框删除一行数据，当我单击删除时，我的php应该删除该行

Question

我有一个动态表，每行都有一个复选框。当我单击复选框，然后单击删除按钮时，我希望操作转到我的PHP并删除具有标记复选框的行。我在这里尝试了解决方案：从php中的表中删除选定的行，但这对我不起作用。我不断收到错误消息，指出“复选框是未定义的索引”<?php              if (isset($_POST['delete'])){                $Tasknumber_delete = $_POST['checkbox'];                mysqli_query($link,"Delete from Universe.Task  where TaskNumber = $Tasknumber_delete");            }                ?><form class="searchBar"   method="post" action=''>        <input type="submit" action='POST'  class="btn-group" id="delete" name="delete" value="delete" style="background-color: #757575; font-family: HelveticaNeue;font-size: 13px;"></formtable class="taskTable"  >    <tbody class="task-tbody">        <?php while($row1 = mysqli_fetch_array($Table)){ $task123=$row1[2];?>        <!-- removed onclick= -->        <tr class = "task-tr"  onclick="myFunction('<?php echo $task123;?>')">            <td class="task-td"><input type="checkbox"   name="checkbox" value="<?php echo $task123?>"></td>            <td class="task-td"> <?php if ($row1[0]=='backlog') {$statuscss= 'statusBacklog';} elseif ($row1[0]== 'inprogress') {$statuscss= 'statusInProgress';} else{ $statuscss= 'statusDone';}    echo '<div class="',$statuscss,'">';?><?php echo $row1[0];?></div></td>            <td class="task-td"> <?php if ($row1[1]=='HIGH') {$statuscss= 'priorityHigh';} elseif ($row1[1]== 'MEDIUM') {$statuscss= 'priorityMedium ';} else{ $statuscss= 'priorityLow';}    echo '<div class="',$statuscss,'">';?>  <?php echo $row1[1];?></div></td>            <td class="task-td" > <?php echo $task123;?></td>            <td class="task-description"> <?php echo $row1[3];?></td>            <td class="task-td"> <?php echo $row1[4];?></td>            <td class="task-td"> <?php echo $row1[5];?></td>            <td class="task-td" width="15"> </td>        </tr>        <?php }?>    </tbody></table>我添加了删除php的代码，具有删除按钮的表单以及该复选框所在的表格。

Answer 1

让我们将封闭的表单标签放在脚本的末尾，并为您的复选框命名：name =“ checkbox []”

<form class="searchBar"   method="post" action=''>

  <input type="submit" action='POST'  class="btn-group" id="delete" name="delete" value="delete" style="background-color: #757575; font-family: HelveticaNeue;font-size: 13px;">

  <table class="taskTable"  >

    <tbody class="task-tbody">

        <?php while($row1 = mysqli_fetch_array($Table)){ $task123=$row1[2];?>

        <!-- removed onclick= -->

        <tr class = "task-tr" onclick="myFunction('<?php echo($task123); ?>')">

            <td class="task-td"><input type="checkbox"   name="checkbox[]" value="<?php echo $task123?>"/></td>

            <td class="task-td"> <?php if ($row1[0]=='backlog') {$statuscss= 'statusBacklog';} elseif ($row1[0]== 'inprogress') {$statuscss= 'statusInProgress';} else{ $statuscss= 'statusDone';}    echo '<div class="',$statuscss,'">';?><?php echo $row1[0];?></div></td>

            <td class="task-td"> <?php if ($row1[1]=='HIGH') {$statuscss= 'priorityHigh';} elseif ($row1[1]== 'MEDIUM') {$statuscss= 'priorityMedium ';} else{ $statuscss= 'priorityLow';}    echo '<div class="',$statuscss,'">';?>  <?php echo $row1[1];?></div></td>

            <td class="task-td" > <?php echo $task123;?></td>

            <td class="task-description"> <?php echo $row1[3];?></td>

            <td class="task-td"> <?php echo $row1[4];?></td>

            <td class="task-td"> <?php echo $row1[5];?></td>

            <td class="task-td" width="15"> </td>

        </tr>

        <?php }?>

    </tbody>

  </table>

</form>