一 代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>使用fetchColumn()方法读取数据库中的数据</title>
<style type="text/css">
<!--
body,td,th {
font-size: 12px;
}
-->
</style></head>
<body>
<table id="__01" width="891" border="0" cellpadding="0" cellspacing="0">
<tr>
<td colspan="4">
<img src="images/fetch_01.jpg" width="890" height="86" alt=""></td>
<td>
<img src="images/分隔符.gif" width="1" height="86" alt=""></td>
</tr>
<tr>
<td rowspan="2">
<img src="images/fetch_02.jpg" width="236" height="288" alt=""></td>
<td colspan="3">
<img src="images/fetch_03.jpg" width="654" height="48" alt=""></td>
<td>
<img src="images/分隔符.gif" width="1" height="48" alt=""></td>
</tr>
<tr>
<td rowspan="3" width="11" background="images/fetch_04.jpg">
</td>
<td width="618" rowspan="3" valign="top">
<table width="580" border="0" cellpadding="0" cellspacing="0">
<tr>
<td height="30" align="center"><strong>ID（第一列，数据ID值）</strong></td>
</tr>
<?php
$dbms='mysql'; //数据库类型 ,对于开发者来说，使用不同的数据库，只要改这个，不用记住那么多的函数
$host='localhost'; //数据库主机名
$dbName='db_database15'; //使用的数据库
$user='root'; //数据库连接用户名
$pass='root'; //对应的密码
$dsn="$dbms:host=$host;dbname=$dbName";
try {
$pdo = new PDO($dsn, $user, $pass); //初始化一个PDO对象，就是创建了数据库连接对象$pdo
$query="select * from tb_pdo_mysql"; //定义SQL语句
$result=$pdo->prepare($query); //准备查询语句
$result->execute(); //执行查询语句，并返回结果集
?>
<tr>
<td height="22" align="center" valign="middle"><?php echo $result->fetchColumn(0);?></td>
</tr>
<tr>
<td height="22" align="center" valign="middle"><?php echo $result->fetchColumn(0);?></td>
</tr>
<tr>
<td height="22" align="center" valign="middle"><?php echo $result->fetchColumn(0);?></td>
</tr>
<tr>
<td height="22" align="center" valign="middle"><?php echo $result->fetchColumn(0);?></td>
</tr>
<?php
} catch (PDOException $e) {
die ("Error!: " . $e->getMessage() . "<br/>");
}
?>
</table>
</td>
<td rowspan="3" width="25" background="images/fetch_06.jpg">
</td>
<td>
<img src="images/分隔符.gif" width="1" height="240" alt=""></td>
</tr>
<tr>
<td>
<img src="images/fetch_08.jpg" width="236" height="22" alt=""></td>
<td>
<img src="images/分隔符.gif" width="1" height="22" alt=""></td>
</tr>
<tr>
<td colspan="4">
<img src="images/fetch_09.jpg" width="890" height="90" alt=""></td>
<td>
<img src="images/分隔符.gif" width="1" height="90" alt=""></td>
</tr>
</table>
<!-- End ImageReady Slices -->
</body>
</html>
二 运行结果
