不太确定如何解释这一点，但我认为图片说明了一切。我正在尝试使用数据库中的数据来流行该表。
非常迷茫和困惑，不知道我如何正确。
谢谢
想要保留我的复选框求和函数
不希望的结果
期望的结果
这是我的代码
<?php
include('connect1.php');
$retrieve = $db->prepare("SELECT count(*) FROM Asset");
$retrieve->execute();
$fetchrow = $retrieve->fetch(PDO::FETCH_NUM);
$calculated=$fetchrow[0];
?>
<script type="text/javascript">
function UpdateCost() {
var sum = 0;
var gn, elem;
for (i=0; i<<?php echo $calculated ?>; i++) {
gn = 'sum_m_'+i;
elem = document.getElementById(gn);
if (elem.checked == true) { sum += Number(elem.value); }
}
document.getElementById('totalcost' ).value = sum.toFixed(0);
}
window.onload=UpdateCost
</script>
<link rel="stylesheet" href="style.css" />
Total Cost : <input type="text" name="sen" id="totalcost" value="">
<?php
include('connect1.php');
$result = $db->prepare("SELECT * FROM Asset");
$result->bindParam(':userid', $res);
$result->execute();
for($i=0; $row = $result->fetch(); $i++){
?>
<table cellpadding="0" cellspacing="0" border="0" id="table" class="sortable">
<thead>
<tr>
<th><h3>Asset ID</h3></th>
<th><h3>Vendor</h3></th>
<th><h3>Hardware </h3></th>
<th><h3>Cost</h3></th>
<th><h3>Date Of Purchase</h3></th>
<th><h3><INPUT TYPE="checkbox" NAME="items[]" value="<?php echo $row['Asset_Cost'] ?>" id="sum_m_<?php echo $i ?>" onclick="UpdateCost()"></h3></th>
</tr>
</thead>
<?php
echo "<tr>";
echo "<td>" . $row['Asset_ID'] . "</td>";
echo "<td>" . $row['Vendor_Name'] . "</td>";
echo "<td>" . $row['Hardware_ID'] . "</td>";
echo "<td>" . $row['Asset_Cost'] . "</td>";
echo "<td>" . $row['DateOfPurchase'] . "</td>";
echo "</tr>";
}
?>
<br>
<div id="controls">
<div id="perpage">
<select onchange="sorter.size(this.value)">
<option value="5">5</option>
<option value="10" selected="selected">10</option>
<option value="20">20</option>
<option value="50">50</option>
<option value="100">100</option>
</select>
<span>Entries Per Page</span>
</div>
<div id="navigation">
<img src="images/first.gif" width="16" height="16" alt="First Page" onclick="sorter.move(-1,true)" />
<img src="images/previous.gif" width="16" height="16" alt="First Page" onclick="sorter.move(-1)" />
<img src="images/next.gif" width="16" height="16" alt="First Page" onclick="sorter.move(1)" />
<img src="images/last.gif" width="16" height="16" alt="Last Page" onclick="sorter.move(1,true)" />
</div>
<div id="text">Displaying Page <span id="currentpage"></span> of <span id="pagelimit"></span></div>
</div>
将表头移出for循环：
这一行：
for($i=0; $row = $result->fetch(); $i++){
应该在这条行之后：
</thead>
您现在正在启动一个新表并前往每一行。
也不要忘记用</table>关闭你的桌子。
表和 thead 标签应该在循环之外，
我还注意到您两次包含 connect1.php 文件：
<?php
include('connect1.php');
$retrieve = $db->prepare("SELECT count(*) FROM Asset");
$retrieve->execute();
$fetchrow = $retrieve->fetch(PDO::FETCH_NUM);
$calculated=$fetchrow[0];
?>
<script type="text/javascript">
function UpdateCost() {
var sum = 0;
var gn, elem;
for (i=0; i<<?php echo $calculated ?>; i++) {
gn = 'sum_m_'+i;
elem = document.getElementById(gn);
if (elem.checked == true) { sum += Number(elem.value); }
}
document.getElementById('totalcost' ).value = sum.toFixed(0);
}
window.onload=UpdateCost
</script>
<link rel="stylesheet" href="style.css" />
Total Cost : <input type="text" name="sen" id="totalcost" value="" />
<table cellpadding="0" cellspacing="0" border="0" id="table" class="sortable">
<thead>
<tr>
<th><h3>Asset ID</h3></th>
<th><h3>Vendor</h3></th>
<th><h3>Hardware </h3></th>
<th><h3>Cost</h3></th>
<th><h3>Date Of Purchase</h3></th>
</tr>
</thead>
<tbody>
<?php
// include('connect1.php'); you already included this file
$result = $db->prepare("SELECT * FROM Asset");
$result->bindParam(':userid', $res);
$result->execute();
for($i=0; $row = $result->fetch(); $i++){
?>
<tr>
<td><?php echo $row['Asset_ID']; ?></td>
<td><?php echo $row['Vendor_Name']; ?></td>
<td><?php echo $row['Hardware_ID']; ?></td>
<td><?php echo $row['Asset_Cost']; ?></td>
<td><?php echo $row['DateOfPurchase']; ?></td>
</tr>
<?php
}
?>
</tbody>
</table>
<br />
<div id="controls">
<div id="perpage">
<select onchange="sorter.size(this.value)">
<option value="5">5</option>
<option value="10" selected="selected">10</option>
<option value="20">20</option>
<option value="50">50</option>
<option value="100">100</option>
</select>
<span>Entries Per Page</span>
</div>
<div id="navigation">
<img src="images/first.gif" width="16" height="16" alt="First Page" onclick="sorter.move(-1,true)" />
<img src="images/previous.gif" width="16" height="16" alt="First Page" onclick="sorter.move(-1)" />
<img src="images/next.gif" width="16" height="16" alt="First Page" onclick="sorter.move(1)" />
<img src="images/last.gif" width="16" height="16" alt="Last Page" onclick="sorter.move(1,true)" />
</div>
<div id="text">Displaying Page <span id="currentpage"></span> of <span id="pagelimit"></span></div>
</div>