我试图当我点击复选框隐藏字段的“礼物”ID变得可见如果我取消选中该复选框,然后隐藏字段的“缺席”ID变得可见。但是当我点击复选框只有第一行表格受到影响,而其他行不影响复选框处于选中状态或未选中状态。以下是HTML代码复选框效果只有一个表
<table class="table table-bordered">
<tr>
<td><strong> Name</strong></td>
<td><strong>Email</strong></td>
<td><strong>Phone</strong></td>
<td><strong>Cnic</strong></td>
<td><strong>Attendence</strong></td>
<td><strong>Status</strong></td>
</tr>
<?php foreach($user as $USER){?>
<form method="post" action="">
<tr>
<td>
<input type="text" name="name" value="<?=$USER->name;?>" readonly>
<input type="hidden" name="u_id" value="<?=$USER->u_id;?>">
</td>
<td>
<input type="text" name="email" value="<?=$USER->email;?>" readonly>
</td>
<td>
<input type="text" name="phone" value="<?=$USER->phone;?>" readonly>
</td>
<td>
<input type="text" name="cnic" value="<?=$USER->cnic;?>" readonly>
</td>
<td style="text-align: center">
<input type="checkbox"name="checkbox"id="checkbox" onclick="visibility()">
</td>
<td>
<span style="visibility: hidden; color: green;"><input type="text" name="att" value="Present" id="present"></span>
<span style="visibility: hidden; color: red;"><input type="text" name="att" value="Absent" id="absent"></span>
</td>
</tr>
<?php }?>
</form>
</table>
而且下面是JavaScript代码
<script type="text/javascript">
function visibility() {
if (document.getElementById("checkbox") . checked == true){
document.getElementById("present").style.visibility ="visible";
document.getElementById("absent").style.visibility = "hidden";
}else{
document.getElementById("absent").style.visibility = "visible";
document.getElementById("present").style.visibility = "hidden";
}
}
</script>
使用类选择元素要检查的,而不是ID即document.getElementsByClassName(‘复选框’),你应该罚款 –
'id'属性应该是唯一的以区分复选框 –
通过使用类名称,不会影响 –