这一节讲的是第二个页面，留言页面，就是通过留言页，写数据，将数据插入数据库的一步。
<?php
session_start();
header("content-type:text/html;charset=utf-8");
//连接数据库
$link = mysqli_connect("localhost","root","root","message");
mysqli_set_charset($link,"utf8");
if (!$link) {
die("连接失败: " . mysqli_connect_error());
}
$name = isset($_POST['name'])?$_POST['name']:"";
$title = isset($_POST['title'])?$_POST['title']:"";
$content = isset($_POST['content'])?$_POST['content']:"";
$time = date("Y-m-d H:i:s");
$sql ="insert into details(name,title,content,time) values('$name','$title','$content','$time')";
$rel = mysqli_query($link,$sql);
if($rel){
echo"留言成功"."<br/><br/>";
echo"<a href='list.php'>跳转至留言列表页面</a>";
}else{
echo"留言失败"."<br/><br/>";
echo"<a href='form.html'>跳转至留言编辑页面</a>";
}
?>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="format-detection" content="telephone=no" />
<title>留言板</title>
<style>
.w410{
width:410px
}
.mr_auto{
margin:0 auto;
}
.w400{
width:400px
}
</style>
</head>
<body>
<div class="w410 mr_auto">
<!--头部图片-->
<div>
<img src="https://img.php.cn/upload/course/000/000/007/5816db62346b9319.jpg">
</div>
<div style="padding-top: 30px;" class="mr_auto w400">
<form method="post" name="form1" id="form1" action="message.php">
标题：<input type="text" name="title"><br/><br/>
内容：<textarea style="width:350px;height:200px;" name="content"></textarea><br/><br/>
作者：<input type="text" name="name"><br/><br/>
<a href=""><input type="submit" style="margin-left:350px" value="提交"></a>
</form>
</div>
</div>
</body>
</html>