How to write checkbox value to MySQL table?

Question

PHP

There is a table dynamically generated from the database with checkboxes in one of the columns:

<table style="width: 1000;" id="activeTable" class="editableTable" overflow = "scroll">
        <thead class="t_hdr">
            <tr class="header">
 
                <td><b>ID</b></td>
                <td><b>Изготовитель</b></td>
                <td><b>Адрес</b></td>
                <td><b>Печать</b></td>
                
            </tr>
        </thead>
        <tbody>
 
            <input type="submit" class="my_button" name="update" value="UPDATE" style="width: 270px"/><br>
    <?  $i = 0;
        while ($row = $Result->fetch_assoc()) {
        $i++;
        //$sql = $Database -> query("UPDATE izgotoviteli SET stamp = 0 WHERE id = $i");
    ?>
                
                <tr  id="z_<?=$i?>">
                <td name = "post_id"><?=$row['id']?></td>
                <td><?=$row['izgotovitel']?></td>
                <td><?=$row['adress']?></td>
        <td><label check></label><input type="checkbox" name="stamp[]" value="<?=$row['stamp']?>" <? if($row['stamp'] == 1)echo $check ?> onchange="save()" ></td>
                </tr>
                <? } ?> 
            </tbody>
        </table>

It turned out to make the checkbox values ​​read from the database (tinyint(1) type is used: 1-checkbox, 0-no checkbox):

<label check></label><input type="checkbox" name="stamp[]" value="<?=$row['stamp']?>

But how to make the value 0 or 1 entered into the database if you check the checkbox?