演示页面：http://www.dshui.wang/html/board1.php
首先我们得建立一个数据表用来存放留言信息：（由于之前作业有建立数据库’XSGL’，我们就直接用这个数据库啦）
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| CREATE TABLE `msg` (
`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`content` varchar(254) NOT NULL DEFAULT '',
`username` char(10) DEFAULT '',
`stime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
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建立一个mysql的连接文件： mysqlconfig.php
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| <?php
error_reporting(0);
header ( "Content-type:text/html;charset=utf-8" );
$dbhost = 'localhost';
$dbname = 'XSGL';
$user = 'root';
$pwd = '1234';
$conn = mysql_connect($dbhost,$user,$pwd) or die ( "could not connect mysql" );
mysql_select_db ( $dbname, $conn ) or die ( "could not open database" );
mysql_query ( "set names utf8;" );
?>
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新建一个留言本程序：board1.php
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| <?php
include './mysqlconfig.php';
if($_POST['issubmit']!=null){
$content = $_POST['content'];
$sql = "insert into msg(content) values ('".$content."');";
$res = mysql_query($sql);
header ( "refresh:0;url=" );
}
$sql = "select * from msg order by id desc;";
$result = mysql_query($sql);
?>
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| <!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>简易留言板</title>
</head>
<body bgcolor="#56FF00">
<div style="margin:0 auto;width:400px;">
<div class="form">
<form method="post">
<textarea name="content" cols="45" rows="5" style="width: 400px; height: 88px;"></textarea>
<div align="right"><input type="submit" name="issubmit" value="留言" /> </div>
</form>
</div>
<div class="msg">
<table border="1" bordercolor="#FFFFFF">
<?php while ($rows = mysql_fetch_assoc($result)){?>
<tr>
<td><span class="datetime">（<?php echo $rows['stime'];?>）</span>
<span class="content"><?php echo $rows['content'];?></span></td>
</tr>
<?php }?>
</table>
</div>
</div>
</body>
</html>
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