PHP搭建简易留言板
1.创建数据库
CREATE TABLE `message` (
`id` tinyint(1) NOT NULL auto_increment,
`user` varchar(25) NOT NULL,
`title` varchar(50) NOT NULL,
`content` tinytext NOT NULL,
`lastdate` timestamp NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;创建完后效果如下：
（本人使用的工具是mysql-front，读者也可以使用其他适合的数据库管理工具）
2.创建所需要的文件
add.html 留言提交前端页面
add.php 评论录入数据库文件
conn.php 连接数据库文件
del.php 删除留言文件
list.php 展示留言页面
css.css css文件
3.代码详细编写
3.1 conn.php
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2017/9/17/017
* Time: 20:39
*/
$conn = mysqli_connect('localhost','root','root');
$conn->select_db('bbs');
$conn->query('set names UTF-8');
3.2 add.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link href="css.css" rel="stylesheet" type="text/css">
<title>Title</title>
<?php include ("add.php")?>
</head>
<script>
function CheckPost() {
if(myform.user.value=="")
{
alert("请填写用户");
myform.user.focus();
return false;
}
if (myform.title.value.length<5)
{
alert("标题不能少于5个字符");
myform.title.focus();
return false;
}
if (myform.content.value=="")
{
alert("内容不能为空");
myform.content.focus();
return false;
}
}
</script>
<body>
<b> <a href="list.php">浏览留言</a> </b>
<hr size=1>
<form action="add.php" method="post" name="myform" onsubmit="return CheckPost();">
用户：<input type="text" size="10" name="user"/><br>
标题：<input type="text" name="title" /><br>
内容：<textarea name="content" rows="20" cols="60"></textarea><br>
<input type="submit" name="submit" value="发布留言" />
</form>
</body>
</html>3.3 add.php
<?php
include ("conn.php");
$id=$_POST['id'];
$user=$_POST['user'];
$title=$_POST['title'];
$content=$_POST['content'];
if ($_POST['submit']){
$sql="insert into message(id,user,title,content,lastdate)values('','$user','$title','$content',now())";
$conn->query($sql);
echo "<script>alert('添加成功');history.go(-1)</script>";
}
?>
3.4 del.php
<?php
include 'conn.php';
$id = $_GET['id'];
$query="delete from message where id=".$id;
$conn->query($query);
?>
<?php
//页面跳转，实现方式为javascript
$url = "list.php";
echo "<script>";
echo "window.location.href='$url'";
echo "</script>";
?>3.5 list.php
<!DOCTYPE html>
<html lang="utf-8">
<head>
<?php
include ("conn.php");
?>
<link href="css.css" rel="stylesheet" type="text/css">
</head>
<table width=500 border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#add3ef" >
<?php
$sql="select * from message order by id desc";
$query=$conn->query($sql);
while($row=$query->fetch_array(MYSQLI_BOTH)){ ?>
<tr bgcolor="#eff3ff">
<td>标题： <?php echo $row['title'];?> <font color="red">用户： <?php echo $row['user'];?><div align="right"><a href="del.php?id=<?php echo $row['id'];?>">删除</a></div> </td>
</tr>
<tr bgColor="#ffffff">
<td>发表内容:<?php echo $row['content'];?></td>
</tr>
<tr bgColor="#ffffff">
<td><div align="right">时间:<?php echo $row['lastdate'];?></td>
</tr>
<?php } ?>
<tr bgcolor="#f0fff0">
<td><div align="right"><a href="add.html">返回留言</a> </td>
</tr>
</table>
</html>3.6 css.css
td {
line-height: 16pt;
font-size: 10pt;
font-family: "Verdana", "Arial", "Helvetica", "sans-serif";
}
a:link {
text-decoration: none;
color: #000000;
}
body {
font-size: 10pt;
line-height: 13pt;
background-color: #ECF5FF;
}
textarea {
font-size: 8pt;
font-family: "Verdana", "Arial", "Helvetica", "sans-serif";
border: 1px solid #999999;
padding: 5px;
}
form {
margin: 0px;
padding: 0px;
}
.textdrow {
color:#666666;
filter: DropShadow(Color=white, OffX=1, OffY=1, Positive=1);
}
.p {
text-indent: 24px;
}4.页面展示
提交页面：
留言展示：
