php数据库写留言板 用php写留言板

php怎么在mysql创建留言板步骤工具:
Dreamweaver
php、mysql服务器
步骤/方法
首先是确定自己的留言板需求.例如:名字,邮件及留言内容.
一. 建立一个数据库guestbook 。
CREATE TABLE IF NOT EXISTS `content` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(20) NOT NULL,
`email` varchar(50) NOT NULL,
`content` varchar(200) NOT NULL,
PRIMARY KEY(`id`))
ENGINE=MyISAMDEFAULT CHARSET=utf8 AUTO_INCREMENT=3;
二. 新建config.php
? php
$q = mysql_connect("服务器","数据库用户","数据库密码");
if(!$q)
{
die('Could not connect: ' . mysql_error());
}
mysql_query("set names utf8");//以utf8读取数据
mysql_select_db("guestbook",$q);//数据库
?
三. 新建index.php
?php
include("config.php");//引入数据库连接文件
$sql = "select * from content";//搜索数据表content
$resule = mysql_query($sql,$q);
?
html
meta http-equiv="Content-Type" content="text/html; charset=utf-8" /
body
table width="678" align="center"
tr
td colspan="2" h1留言本 /h1 /td
/tr
tr
td width="586" a href="https://www.04ip.com/post/index.php"首页 /a |a href="https://www.04ip.com/post/liuyan.php"留言 /a /td
/tr
/table
p
?
while($row=mysql_fetch_array($resule))
{
?
/p
table width="678" border="1" align="center" cellpadding="1" cellspacing="1"
tr
td width="178"Name: ? echo $row[1] ? /td
td width="223"Email: ? echo $row[2] ? /td
/tr
tr
td colspan="4" ? echo $row[3] ? /td
/tr
tr
/table
?
}
?
/body
/html
四. 新建liuyan.php
html
【php数据库写留言板 用php写留言板】 body
meta http-equiv="Content-Type" content="text/html; charset=utf-8" /
table width="678" align="center"
tr
td colspan="2" h1留言本 /h1 /td
/tr
tr
td width="586" a href="https://www.04ip.com/post/index.php"首页 /a |a href="https://www.04ip.com/post/liuyan.php"留言 /a /td
/tr
/table
table align="center" width="678"
tr
td
form name="form1" method="post" action="post.php"
p
Name:
input name="name" type="text" id="name"
/p
pEmail: input type="test" name="email" id="email" /p
p
留言:
/p
p
textarea name="content" id="content" cols="45" rows="5" /textarea
/p
p
input type="submit" name="button" id="button" value="https://www.04ip.com/post/提交"
input type="reset" name="button2" id="button2" value="https://www.04ip.com/post/重置"
/p
/form
/td
/tr
/table
/body
/html
五. 新建post.php
?php
header("content-Type: text/html; charset=utf-8");
include("config.php");
$name= $_POST['name'];
$email= $_POST['email'];
$patch= $_POST['content'];
$content = str_replace("
"," br /",$patch);
$sql = "insert into content (name,email,content) values ('$name','$email','$content')";
mysql_query($sql);
echo " scriptalert('提交成功!返回首页 。');location.href='https://www.04ip.com/post/index.php'; /script";
?
这样已经成功的写出一个留言板了 。
第二部分
此次将在上面版本上加多管理,回复等功能 。
首先在sql中字节 。
ALTER TABLE `content` ADD `reply` VARCHAR( 200 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL AFTER `content`
一. 新建login.php
html xmlns=""
meta http-equiv="Content-Type" content="text/html; charset=utf-8" /
title无标题文档 /title
/head
body table width="678" align="center"
tr
td colspan="2" h1留言本 /h1 /td
/tr
tr
td width="586" a href="https://www.04ip.com/post/index.php"首页 /a |a href="https://www.04ip.com/post/liuyan.php"留言 /a /td
/tr
/table
table align="center" width="678"
tr
td align="center"
form name="form1" method="post" action="login2.php"
label for="textfield" /label
p/p
p帐号:
input type="text" name="name" id="name"
/p
p密码:
input type="password" name="pw" id="pw"
/p
p
input type="submit" name="button" id="button" value="https://www.04ip.com/post/提交"
input type="reset" name="button2" id="button2" value="https://www.04ip.com/post/重置"
/p
/form /td
/tr
/table
/body
/html
二.login2.php
?
session_start();
header("content-Type: text/html; charset=utf-8");
$name = $_POST['name'];
$pw = $_POST['pw'];
if($name == "admin"$pw == "admin"){
$_SESSION["adminname"] = $name;
echo " scriptalert('登录完成,返回首页!');location.href='https://www.04ip.com/post/index.php'; /script";
}else{
echo " scriptalert('错误!');location.href='https://www.04ip.com/post/login.php'; /script";
}
?
三. 在原有的index.php上添加
?php
session_start();
include("config.php");
$sql = "select * from content";
$resule = mysql_query($sql,$q);
?
html
meta http-equiv="Content-Type" content="text/html; charset=utf-8" /
body
table width="678" align="center"
tr
td colspan="2" h1留言本 /h1 /td
/tr
tr
td width="586" a href="https://www.04ip.com/post/index.php"首页 /a |a href="https://www.04ip.com/post/liuyan.php"留言 /a /td
td width="80"
// 新增管理员登录
?php
if (isset($_SESSION['adminname'])$_SESSION["adminname"] == "admin"){
echo " a href='https://www.04ip.com/post/logout.php'登出 /a";
}else{
echo " a href='https://www.04ip.com/post/login.php'管理员登录 /a";
}
?
/td
/tr
/table
p
?
while($row=mysql_fetch_array($resule))
{
?
/p
table width="678" border="1" align="center" cellpadding="1" cellspacing="1"
tr
td width="178"Name: ? echo $row[1] ? /td
td width="223"Email: ? echo $row[2] ? /td
td width="100"
?php
if(isset($_SESSION['adminname'])$_SESSION["adminname"] == "admin"){
echo " a href='https://www.04ip.com/post/huifu.php?id=" . $row[0] . "'回复 /a";
echo " | " . " a href='https://www.04ip.com/post/delete.php?id=" . $row[0] . "'删除 /a";
} else {
echo "";
}
?
/td
/tr
tr
td colspan="4" ? echo $row[3] ? /td
/tr
tr
td colspan="4" ?
if($row[4] == ""){
?
? echo "暂无回复 。";?
? }else {echo "管理员回复:". $row[4]; } ? /td
/tr
/table
?
}
?
/body
/html
四. 新建huifu.php
?php
include("config.php");
$sql = "select * from content where id=".$_GET["id"];
$resule = mysql_query($sql,$q);
SetCookie("id",$_GET["id"]);
session_start();
header("content-Type: text/html; charset=utf-8");
if(empty($_SESSION["adminname"])){
exit(" script language='javascript'alert('您尚未登录后台 , 或登录已超时,请重新登录!');window.location.href='https://www.04ip.com/post/login.php'; /script");
}
?
!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ""
html xmlns=""
head
meta http-equiv="Content-Type" content="text/html; charset=utf-8" /
title无标题文档 /title
/head
body
table width="678" align="center"
tr
td colspan="2" h1留言本 /h1 /td
/tr
tr
td width="586" a href="https://www.04ip.com/post/index.php"首页 /a |a href="https://www.04ip.com/post/liuyan.php"留言 /a /td
/tr
/table
table align="center" width="678"
tr
td
form name="reply" method="post" action="reply.php"
p回复:
?
while($row=mysql_fetch_array($resule))
{
echo $row[3];
}
?
/p
p
textarea name="reply" id="reply" cols="45" rows="5" /textarea
/p
p
input type="submit" name="button" id="button" value="https://www.04ip.com/post/回复" /
input type="reset" name="button2" id="button2" value="https://www.04ip.com/post/重置" /
/p
/form
/td
/tr
/table
/body
/html
五. reply.php 回复留言提交页面.
?
include("config.php");
$id = $_COOKIE["id"];
$sql = "select * from content";
header("content-Type: text/html; charset=utf-8");
$patch = $_POST["reply"];
$reply = str_replace("
"," br /",$patch);
$resule = mysql_query("UPDATE`2`.`content` SET`reply` = '$reply' WHERE`content`.`id` ="."$id");
echo " scriptalert('回复成功!');location.href='https://www.04ip.com/post/index.php'; /script";
?
这样就可以建立出一个简单的管理.管理帐号都是admin 因为只是判别输入的是不是admin 是的话就把值输入进session中.
求一步一步教PHP留言板制作方法1. 先设计数据表php数据库写留言板,一般留言板需要两个表php数据库写留言板:留言内容表、回复表
留言内容表:messages
字段如下:
id 自动增加
contents 留言内容
messages_time 留言时间
回复表:reply
字段如下:
id 自动增加
messages_id 关联messages表php数据库写留言板的id
contents 回复的内容
reply_time 回复时间
2. 设计留言板页面及保存留言数据
大概代码如下:
form name="form1" method="post" action="index.php?action=ok"
texarea cols="30" rows="10" name="contents"
/textarea
input type="submit" value="https://www.04ip.com/post/提交"
/form
?php
if($_GET['action'] == 'ok'){
$contents = $_POST['contents'];
mysql_query("insert into messages values(NULL,'".$contents."',now())");
}
?
3. 显示留言内容php数据库写留言板,遍历数据表
?php
//包含数据连接代码
require('data.php');
$query = mysql_query("select * messages");
while($array = mysql_fetch_array($query)){
echo $array['contents']."br";
}
?
4. 回复的设计可以参照留言的设计
如何用php做一个简单的留言板一个html表单,包含留言信息,提交给一个php文件,然后php把数据存入相应数据库 。查看留言则是php从数据库读出相应数据,然后显示给用户 。
如何用php做出登陆注册留言板登录页:login.php
?php
include("conn.php");
$username=$_POST['name'];
$password=$_POST['password'];
$yanzheng=$_POST['yanzheng'];
if(isset($_POST['submit']))
{
$sql=("select username,password from member where username='$username' and password='$password'") or die("sql语句执行失败");
//print_r($sql);
$ar=mysql_query($sql);
if($ar)
{
if($row=mysql_fetch_array($ar))
{
session_start();
if($_POST["yanzheng"])
{
if($yanzheng!=$_session[pic]||$yanzheng=="")
{
echo "验证码输入有误";
exit;
}
if($yanzheng==$_session[pic])
{
header("location:index.php");
}
}
}
else
{
echo "用户名或密码错误";
}
}
}
?
form action="login.php" method="post"
table border=1 align=center width=500 height=300 bgColor=#DFFFDF bordercolor=#fffbec
tr
td colspan=2 align=center用户登录/td
/tr
tr
td用户姓名:/td
tdinput type="text" name="name" id="name"//td
/tr
tr
td用户密码:/td
tdinput type="password" name="password" id="password"//td
/tr
tr
td验证码:/td
tdinput type="text" name="yanzheng" id="yanzheng"/
img src="https://www.04ip.com/post/yanzheng1.php" width="50" height="30"/img
/td
/tr
tr
td colspan=3 align=center
input type="submit" name="submit" value="https://www.04ip.com/post/登录"/
input type="reset" name="reset" value="https://www.04ip.com/post/重置"/
a href="https://www.04ip.com/post/register.php"注册/a
/td
/tr
/table
/form
注册页:register.php
?php
include("conn.php");
if(isset($_POST['submit'])$_POST['submit']) {
if($_POST['username']=='')
{
echo "用户名不能为空";
exit();
}
if($_POST['password']=='')
{
echo "密码不能为空";
exit();
}
if($_POST['realpass']!=$_POST['password'])
{
echo "两次密码输入不一致";
exit();
}
$sql="insert into member(username,real_name,password,email,headimg) values('$_POST[username]','$_POST[username]','$_POST[password]','$_POST[email]','')";
$ar=mysql_query($sql);
if($ar)
{
header("location:index.php");
}
else
{
echo mysql_error();
}
}
?
body
form action="register.php" method="post"
table border=1 align=center width=500
tr
td height=40 bgColor=#DFFFDF colspan=2会员注册[a href="https://www.04ip.com/post/login.php"返回登录页/a]/td
/tr
tr
td height=40 bgColor=#fffbec 会员ID/td
tdinput type="text" name="username" id="username"//td
/tr
tr
td height=40 bgColor=#fffbec密码/td
tdinput type="password" name="password" id="password"//td
/tr
tr
td height=40 bgColor=#fffbec确认密码/td
td
input type="password" name="realpass" id="realpass"/
/td
/tr
tr
td height=40 bgColor=#fffbecEMAIL/td
tdinput type="text" name="email" id="email"/
/tr
tr
td height=40 bgColor=#fffbec/td
tdinput type="submit" name="submit" value="https://www.04ip.com/post/注册"/input type="reset" value="https://www.04ip.com/post/重置"/td
/tr
/table
/form
/body
主页显示:index.php
?php
include("conn.php");
function cutstr($str,$cutleng)
{
$str = $str; //要截取的字符串
$cutleng = $cutleng; //要截取的长度
$strleng = strlen($str); //字符串长度
if($cutleng$strleng)return $str;//字符串长度小于规定字数时,返回字符串本身
$notchinanum = 0; //初始不是汉字的字符数
for($i=0;$i$cutleng;$i)
{
if(ord(substr($str,$i,1))=128)
{
$notchinanum;
}
}
if(($cutleng%2==1)($notchinanum%2==0)) //如果要截取奇数个字符,所要截取长度范围内的字符必须含奇数个非汉字,否则截取的长度加一
{
$cutleng;
}
if(($cutleng%2==0)($notchinanum%2==1)) //如果要截取偶数个字符,所要截取长度范围内的字符必须含偶数个非汉字,否则截取的长度加一
{
$cutleng;
}
return substr($str,0,$cutleng);
}
?
html
head
script type="text/javascript"
function All(e, itemName)
{
var aa = document.getElementsByName(itemName);
for (var i=0; iaa.length; i)
aa[i].checked = e.checked; //得到那个总控的复选框的选中状态
}
function Item(e, allName)
{
var all = document.getElementsByName(allName)[0];
if(!e.checked) all.checked = false;
else
{
var aa = document.getElementsByName(e.name);
for (var i=0; iaa.length; i)
if(!aa[i].checked) return;
all.checked = true;
}
}
/script
/head
?php
include("conn.php");
if(isset($_POST['del']))
{
$mm = $_POST["selected"];
$id =implode(",",$mm);
$sql = "delete from forums where id in(".$id.")";
//echo $sql;
$result=mysql_query($sql);
echo $result?"删除成功":"删除失败";
}
?
table style="BORDER-BOTTOM-WIDTH: 1px; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=600 align=center border=1 bordercolor=#ddddff
tralign=middle
td height=40 bgColor=#DFFFDF colspan=3论坛列表/td
/tr
tr
td colspan=3a href="https://www.04ip.com/post/login.php" style="float:right"[退出系统]/aa href="https://www.04ip.com/post/add_forum.php" style="float:right"[添加论坛]/a/td
td/td
/tr
tralign=middle
td height=40 bgColor=#DFFFDF width=80状态/td
td height=40 bgColor=#DFFFDF论坛/td
td height=40 bgColor=#DFFFDF最后更新/td
/tr
?php
$sql="select * from forums";
$result=mysql_query($sql);
$num=mysql_num_rows($result);
if($num0)
{
while($row=mysql_fetch_array($result)){
?
tr align=middle
td bgColor=#fffbecinput type="checkbox" name="selected" value="https://www.04ip.com/post/1"//td
td height=50 bgColor=#fffbec width=300
?php
echo "diva href=https://www.04ip.com/"forums.php?F=".$row['ID']."\"".$row['forum_name']."/a/div";
echo cutstr($row['forum_description'],24);//最多显示24个字节 , 12个字,多余部分用省略号代替
echo "……";
?
/td
td height=50 bgColor=#fffbecdiv?php echo $row['last_post_time']."by".$row['last_post_author']?/div/td
/tr
?php
}
}
else
{
echo "tr bgColor=#fffbectd colspan=3对不起,论坛尚在创建中……/td/tr";
}
?
tr
td colspan=3input type="checkbox" name="selected" value="https://www.04ip.com/post/1" onclick="All(this,'selected')"/全选/不全选/td
/tr
tr
tdinput type="button" name="del" id="del" value="https://www.04ip.com/post/删除选中项"/
?php
?
/td
/tr
/table
/html
自己创建数据库就好 。
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