使用复选框从表中删除多条记录(行)

尝试使用复选框删除多行。首先，我生成与复选框列的目录表。然后将数据发布到php端。问题是，php端返回到当前页面。这意味着所有操作都成功完成，页面返回用户。但没有成功。php日志没有错误，MySQL有问题。我在$delete=$_POST['delete'];之后又尝试了print_r ($_POST['checkbox']); die();。它给了我类似于Array ( [0] => on [1] => on )的结果，我的代码有什么问题?

我的HTML标记看起来像这样

<?php
$result = $db->query("SELECT id, name, showinmenu FROM menu") ;
$num=$result->num_rows;
if ($num>0) {
?>
    <form method="post" action="processor/dbdel.php">
    <div style="overflow-y: auto; overflow-x: hidden; height:500px">
    <table id="list" class="features-table">    
            <thead>
                <tr>
                    <th>#</th>
                    <th style="min-width:80px;"  class="name">Ad (menyuda işlənən)</th>
                    <th>Sil</th>
                </tr>
            </thead>
            <tbody>
<? 
while ($row = $result->fetch_object()) {
echo '<tr>
<td>'.$row->id.'</td>
<td><a href="'.$wsurl.'admin/?page=edit&id='.$row->id.'">'.$row->name.'</a></td>
<td><input type="checkbox" name="checkbox[]" method="post" value"'.$row->id.'" id="checkbox[]" "/></td>
</tr>';
    }
    // when the loop is complete, close off the list.
    echo "</tbody>  <tr id='noresults'>
        <td style='text-align:center' colspan='9'>Nəticə yoxdur</td>
    </tr></table>
    </div>
    <p style='text-align:center;'>
    <input id='delete' type='submit' name='delete' value='Seçilənləri sil'/>        </p>
    </form>";
    }
    ?>

<?php
    require '../../core/includes/common.php';
        $delete=$_POST['delete'];
        if($delete) // from button name="delete"
        {
        if (is_array($_POST['checkbox'])) 
        foreach($_POST['checkbox'] as $del_id) {
                $del_id = (int)$del_id;
                $result=$db->query ("DELETE FROM menu WHERE id = '$del_id'") or die($db->error);
                $result2=$db->query ("DELETE FROM pages WHERE id = '$del_id'") or die($db->error);
            }
                if($result2)
            {   
                    header("location:".$wsurl."admin/?page=db");    
                }
                else
                {
                    echo "Error: ".$db->error;
                }
        }
    ?>