<?php 
include("connection.php");

// Collect services.
$serviceid = "select * from service";
$servicevalue = $conn->query($serviceid) or die ($conn->error.__LINE__);
$services = [];
while ($row = $servicevalue->fetch_assoc()) {
    $services[] = $row;
}

// Collect activities.
$activityid = "select * from activity";
$activityvalue = $conn->query($activityid) or die ($conn->error.__LINE__);
$activities = [];
while ($row = $activityvalue->fetch_assoc()) {
    $activities[] = $row;
}

// Collect something else?
$perid = "select * from periodicity";
$pervalue = $conn->query($perid) or die ($conn->error.__LINE__);
$pers = [];
while ($row = $pervalue->fetch_assoc()) {
    $pers[] = $row;
}

foreach ($services as $service):

?>

    <form method="post" action="doalert.php" name="test">  
        <ul>
            <li>
                <input name='arr[1][service]' type='checkbox' data-id='Incometax'value="<?php echo $service['service_id']?>"/><?php echo $service['servicename']?>
                <ol>
                    <li>
                        <?php foreach ($activities as $activity) : ?>

                            <input type='checkbox' name='arr[1][activity][]' value="<?php echo $activity['activity_id']?>" /><?php echo $activity['nameofactivity'];?>
                    </li>
                    <br>
                    <?php endforeach;?>

                </ol>

            </li>
        </ul>           
        <br>
<?php endforeach;?>
<input type="submit" name="submit" value="Submit"/>
</form>

服务和活动的价值来自数据库，我想将所有服务和相关活动存储在数据库中 serviceactivitymap 表中，这是我的php代码，但当我存储数据时，最后一次检查的服务值仅与所有已检查的活动一起存储
非金属 MOXy
填满
返回
格林威治恒星时
填满
返回
如果incometax、gst、filling、return是复选框，那么当我们选中时：
国际贸易术语解释通则->填表、退货和商品及服务税->填表、退货
那么代码只存储
商品及服务税->填表、退货和商品及服务税->填表、退货
而不是：
国际贸易术语解释通则->填表、退货和商品及服务税->填表、退货