此页面从URL的$ _GET获取资产ID，并在查询mysql数据库后显示有关资产的一些信息。
当我在浏览器中查看该页面时，有一个不需要的“＆gt;”页面中的字符，我不明白为什么。
我评论它出现的地方。它出现在＆lt;表＆gt;之后创建标签。 ＆lt;表＆gt;标签最初是在PHP脚本部分之外，但我把它扔进去看看它是否有所作为。它没。谢谢大家。
我在Firefox中查看该页面。 Web服务器正在我的笔记本电脑上的Ubuntu Server 10.04虚拟机上运行。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="style.css" />
<title>Wagman IT Asset</title>
</head>
<body>
<div id="page">
<div id="header">
<img src="images/logo.png" />
</div>
</div>
<div id="content">
<div id="container">
<div id="main">
<div id="menu">
<ul>
<table width="100%" border="0">
<tr>
<td><li><a href="index.php">Search Assets</a></li></td>
<td><li><a href="browse.php">Browse Assets</a></li></td>
<td><li><a href="add_asset.php">Add Asset</a></li></td>
<td> </td>
</tr>
</table>
</ul>
</div>
<div id="text">
<ul>
<li>
<h1>View Asset</h1>
</li>
</ul>
//UNWANTED > CHARACTER APPEARS HERE
<?php
echo "<table width='100%' border='0' cellpadding='2'>";
//make database connect
mysql_connect("localhost", "asset_db", "asset_db") or die(mysql_error());
mysql_select_db("asset_db") or die(mysql_error());
//get asset
$id = $_GET["id"];
//get type of asset
$sql = "SELECT asset.type
From asset
WHERE asset.id = $id";
$result = mysql_query($sql)
or die(mysql_error());
$row = mysql_fetch_assoc($result);
$type = $row['type'];
switch ($type){
case "Server":
$sql = "
SELECT asset.id
,asset.company
,asset.location
,asset.purchase_date
,asset.purchase_order
,asset.value
,asset.type
,asset.notes
,server.manufacturer
,server.model
,server.serial_number
,server.esc
,server.user
,server.prev_user
,server.warranty
FROM asset
LEFT JOIN server
ON server.id = asset.id
WHERE asset.id = $id
";
$result = mysql_query($sql);
while($row = mysql_fetch_assoc($result))
{
echo "<tr><td> </td><td>Asset ID:</td><td>";
$id = $row['id'];
setcookie('id', $id);
echo "$id</td></tr>";
echo "<tr<td> </td>><td>Company:</td><td>";
$company = $row['company'];
setcookie('company', $company);
echo "$company</td></tr>";
echo "<tr><td> </td><td>Location:</td><td>";
$company = $row['location'];
setcookie('location', $location);
echo "$location</td></tr>";
echo "<tr><td> </td><td>Purchase Date:</td><td>";
$purchase_date = $row['purchase_date'];
setcookie('purchase_date', $purchase_date);
echo "$purchase_date</td></tr>";
echo "<tr><td> </td><td>Purchase Order:</td><td>";
$purchase_order = $row['purchase_order'];
setcookie('purchase_order', $purchase_order);
echo "$purchase_order</td></tr>";
echo "<tr><td> </td><td>Value:</td><td>";
$value = $row['value'];
setcookie('value', $value);
echo "$value</td></tr>";
echo "<tr><td> </td><td>Type:</td><td>";
$type = $row['type'];
setcookie('type', $type);
echo "$type</td></tr>";
echo "<tr><td> </td><td>Notes:</td><td>";
$notes = $row['notes'];
setcookie('notes', $notes);
echo "$notes</td></tr>";
echo "<tr><td> </td><td>Manufacturer:</td><td>";
$manufacturer = $row['manufacturer'];
setcookie('manufacturer', $manufacturer);
echo "$manufacturer</td></tr>";
echo "<tr><td> </td><td>Model / Description:</td><td>";
$model = $row['model'];
setcookie('model', $model);
echo "$model</td></tr>";
echo "<tr><td> </td><td>Serial Number / Service Tag:</td><td>";
$serial_number = $row['serial_number'];
setcookie('serial_number', $serial_number);
echo "$serial_number</td></tr>";
echo "<tr><td> </td><td>Express Service Code:</td><td>";
$escy = $row['esc'];
setcookie('esc', $esc);
echo "$esc</td></tr>";
echo "<tr><td> </td><td>User:</td><td>";
$user = $row['user'];
setcookie('user', $user);
echo "$user</td></tr>";
echo "<tr><td> </td><td>Previous User:</td><td>";
$prev_user = $row['prev_user'];
setcookie('prev_user', $prev_user);
echo "$prev_user</td></tr>";
echo "<tr><td> </td><td>Warranty:</td><td>";
$warranty = $row['warranty'];
setcookie('warranty', $warranty);
echo "$warranty</td></tr></table>";
}
break;
case "Laptop":
$sql = "
SELECT asset.id
,asset.company
,asset.location
,asset.purchase_date
,asset.purchase_order
,asset.value
,asset.type
,asset.notes
,laptop.manufacturer
,laptop.model
,laptop.serial_number
,laptop.esc
,laptop.user
,laptop.prev_user
,laptop.warranty
FROM asset
LEFT JOIN laptop
ON laptop.id = asset.id
WHERE asset.id = $id
";
$result = mysql_query($sql);
while($row = mysql_fetch_assoc($result))
{
echo "<tr><td> </td><td>Asset ID:</td><td>";
$id = $row['id'];
setcookie('id', $id);
echo "$id</td></tr>";
echo "<tr<td> </td>><td>Company:</td><td>";
$company = $row['company'];
setcookie('company', $company);
echo "$company</td></tr>";
echo "<tr><td> </td><td>Location:</td><td>";
$company = $row['location'];
setcookie('location', $location);
echo "$location</td></tr>";
echo "<tr><td> </td><td>Purchase Date:</td><td>";
$purchase_date = $row['purchase_date'];
setcookie('purchase_date', $purchase_date);
echo "$purchase_date</td></tr>";
echo "<tr><td> </td><td>Purchase Order:</td><td>";
$purchase_order = $row['purchase_order'];
setcookie('purchase_order', $purchase_order);
echo "$purchase_order</td></tr>";
echo "<tr><td> </td><td>Value:</td><td>";
$value = $row['value'];
setcookie('value', $value);
echo "$value</td></tr>";
echo "<tr><td> </td><td>Type:</td><td>";
$type = $row['type'];
setcookie('type', $type);
echo "$type</td></tr>";
echo "<tr><td> </td><td>Notes:</td><td>";
$notes = $row['notes'];
setcookie('notes', $notes);
echo "$notes</td></tr>";
echo "<tr><td> </td><td>Manufacturer:</td><td>";
$manufacturer = $row['manufacturer'];
setcookie('manufacturer', $manufacturer);
echo "$manufacturer</td></tr>";
echo "<tr><td> </td><td>Model / Description:</td><td>";
$model = $row['model'];
setcookie('model', $model);
echo "$model</td></tr>";
echo "<tr><td> </td><td>Serial Number / Service Tag:</td><td>";
$serial_number = $row['serial_number'];
setcookie('serial_number', $serial_number);
echo "$serial_number</td></tr>";
echo "<tr><td> </td><td>Express Service Code:</td><td>";
$escy = $row['esc'];
setcookie('esc', $esc);
echo "$esc</td></tr>";
echo "<tr><td> </td><td>User:</td><td>";
$user = $row['user'];
setcookie('user', $user);
echo "$user</td></tr>";
echo "<tr><td> </td><td>Previous User:</td><td>";
$prev_user = $row['prev_user'];
setcookie('prev_user', $prev_user);
echo "$prev_user</td></tr>";
echo "<tr><td> </td><td>Warranty:</td><td>";
$warranty = $row['warranty'];
setcookie('warranty', $warranty);
echo "$warranty</td></tr></table>";
}
break;
case "Desktop":
$sql = "
SELECT asset.id
,asset.company
,asset.location
,asset.purchase_date
,asset.purchase_order
,asset.value
,asset.type
,asset.notes
,desktop.manufacturer
,desktop.model
,desktop.serial_number
,desktop.esc
,desktop.user
,desktop.prev_user
,desktop.warranty
FROM asset
LEFT JOIN desktop
ON desktop.id = asset.id
WHERE asset.id = $id
";
$result = mysql_query($sql);
while($row = mysql_fetch_assoc($result))
{
echo "<tr><td> </td><td>Asset ID:</td><td>";
$id = $row['id'];
setcookie('id', $id);
echo "$id</td></tr>";
echo "<tr<td> </td>><td>Company:</td><td>";
$company = $row['company'];
setcookie('company', $company);
echo "$company</td></tr>";
echo "<tr><td> </td><td>Location:</td><td>";
$company = $row['location'];
setcookie('location', $location);
echo "$location</td></tr>";
echo "<tr><td> </td><td>Purchase Date:</td><td>";
$purchase_date = $row['purchase_date'];
setcookie('purchase_date', $purchase_date);
echo "$purchase_date</td></tr>";
echo "<tr><td> </td><td>Purchase Order:</td><td>";
$purchase_order = $row['purchase_order'];
setcookie('purchase_order', $purchase_order);
echo "$purchase_order</td></tr>";
echo "<tr><td> </td><td>Value:</td><td>";
$value = $row['value'];
setcookie('value', $value);
echo "$value</td></tr>";
echo "<tr><td> </td><td>Type:</td><td>";
$type = $row['type'];
setcookie('type', $type);
echo "$type</td></tr>";
echo "<tr><td> </td><td>Notes:</td><td>";
$notes = $row['notes'];
setcookie('notes', $notes);
echo "$notes</td></tr>";
echo "<tr><td> </td><td>Manufacturer:</td><td>";
$manufacturer = $row['manufacturer'];
setcookie('manufacturer', $manufacturer);
echo "$manufacturer</td></tr>";
echo "<tr><td> </td><td>Model / Description:</td><td>";
$model = $row['model'];
setcookie('model', $model);
echo "$model</td></tr>";
echo "<tr><td> </td><td>Serial Number / Service Tag:</td><td>";
$serial_number = $row['serial_number'];
setcookie('serial_number', $serial_number);
echo "$serial_number</td></tr>";
echo "<tr><td> </td><td>Express Service Code:</td><td>";
$escy = $row['esc'];
setcookie('esc', $esc);
echo "$esc</td></tr>";
echo "<tr><td> </td><td>User:</td><td>";
$user = $row['user'];
setcookie('user', $user);
echo "$user</td></tr>";
echo "<tr><td> </td><td>Previous User:</td><td>";
$prev_user = $row['prev_user'];
setcookie('prev_user', $prev_user);
echo "$prev_user</td></tr>";
echo "<tr><td> </td><td>Warranty:</td><td>";
$warranty = $row['warranty'];
setcookie('warranty', $warranty);
echo "$warranty</td></tr></table>";
}
break;
}
?>
</div>
</div>
</div>
<div class="clear"></div>
<div id="footer" align="center">
<p> </p>
</div>
</div>
<div id="tagline">
Wagman Construction - Bridging Generations since 1902
</div>
</body>
</html>
答案 0 :(得分：4)
echo "<tr<td> </td>**>**<td>Company:</td><td>";
答案 1 :(得分：4)
看这里
echo "<tr<td> </td>><td>Company:</td><td>";
$company = $row['company'];
下次将表格边框设置为1，你会发现这个更快
答案 2 :(得分：3)
在第88行，你有：
echo "<tr<td> </td>><td>Company:</td><td>";
它应该是：
echo "<tr><td> </td>><td>Company:</td><td>";
您在第178行和第266行重复了错误
答案 3 :(得分：2)
嘿，在第5行的第一个While循环中你有：
echo "<tr<td> </td>><td>Company:</td><td>";
如您所见，缺少tr标签＆gt;符号（＆gt;，这里是您在浏览器中显示的＆gt;。只需将代码更正为：
echo "<tr><td> </td><td>Company:</td><td>";
一切都应该没问题。）
的Ladislav