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打造简单的PHP&MYSQL留言板

来源：中国设计秀作者：点击：15 加入收藏发表评论

顶一下

数据库结构：(库名：lyb)

表一: admin
字段: id(int11) name(varchvr) password(varchvr)

表二: lo
字段: id(int11) username(varchvr) sex(varchvr) qq(varchvr) email(varchvr) info(text) ip(varchvr) submit_time(datetime)

1、conn.php(连接数据库文件)

<?php
mysql_connect("localhost","root","");//连接数据库
mysql_select_db("lyb");//选择数据库
?>

2、header.php(公用头部文件)

<!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=gb2312" />
<title>银子留言板 Version 1.0</title>
</head>
<link href="css.css" rel="stylesheet" type="text/css" />
<body>
<div id="head">
    <div id="head_l">
        <ul>
            <li><a href="index.php">偶要看留言</a></li>
            <li><a href="post.php">偶要发表</a></li>
            <?php
            session_start();
            if( $_SESSION["key"]==1){//如果获取的SESSION为1则显示管理项
            ?>
            <li><a href="adminexit.php">退出管理</a></li>
            <?
            }
            else
            {
            ?>
            <li><a href="admin.php">偶要管理</a></li>
            <?}?>
        </ul>
    </div>
    <div id="head_r">银子留言板 Version 1.0</div>
</div>

3、footer.php(公用底部文件)

<?php
$counterFile="conter.xml";
function displayCounter( $counterFile){
$fp = fopen( $counterFile,"rw");
$num = fgets( $fp,5);
$num += 1;
print "<div id=\"footer\">银子留言板 Version 1.0   您是第 "." $num"." 位无聊的银</div>";
exec("rm -rf $counterFile");
exec("echo $num > $counterFile");
}
if(!file_exists( $counterFile)){
exec("echo 0 > $counterFile");
}
displayCounter( $counterFile);
?>

</body>
</html>

4、index.php(首页)

<?php
require_once("conn.php");
require_once("header.php");
session_start();

//分页代码开始
$pagesize = 10;//设置每页显示条数
$rs = mysql_query("select count(*) from lo");//取得记录总数，计算总页数用
$myrow = mysql_fetch_array( $rs);
$numrows = $myrow[0];//计算总记录

$pages = intval( $numrows/ $pagesize);
if( $numrows% $pagesize) $pages++;//设置页数
if(isset( $_GET['page']))
    {
        $page = intval( $_GET['page']);
    }
    else
    {
        $page = 1;//设为第一页
    }
$offset = $pagesize*( $page-1);//计算记录偏移量
//分页代码结束

$sql = "select id,username,sex,qq,email,info,ip,DATE_FORMAT(submit_time, '%Y年%m月%d日 %T' ) from lo order by id desc limit $offset, $pagesize";//用到了DATE-FORMAT格式化日期格式
$result = mysql_query( $sql);
$num = mysql_num_rows( $result);

if( $num>0){
    while( $row = mysql_fetch_array( $result))
    {
    //echo print_r( $row);
        if( $row[2]=="男")//这个使性别改成你想要的名称^_^
        {
            $sex = "帅锅";
        }
        else
        {
            $sex = "美女";
        }

<div id="show_page">
<p>
<?php
$first=1;
$prev= $page-1;
$next= $page+1;
$last= $pages;
if( $page==1&& $pages>1)
{
    echo "首页 | ";
    echo "上一页 | ";
    echo "<a href=\"index.php?page=". $next."\">下一页</a> | ";
    echo "<a href=\"index.php?page=". $last."\">尾页</a> | ";
}
elseif( $page>=1&& $page!= $pages&& $num>0)
{
    echo "<a href=\"index.php?page=". $first."\">首页</a> | ";
    echo "<a href=\"index.php?page=". $prev."\">上一页</a> | ";
    echo "<a href=\"index.php?page=". $next."\">下一页</a> | ";
    echo "<a href=\"index.php?page=". $last."\">尾页</a> | ";
}
elseif( $page== $pages&& $page!=1)
{
    echo "<a href=\"index.php?page=". $first."\">首页</a> | ";
    echo "<a href=\"index.php?page=". $prev."\">上一页</a> | ";
    echo "下一页 | ";
    echo "尾页 | ";
}
elseif( $page== $pages)
{
    echo "首页 | ";
    echo "上一页 | ";
    echo "下一页 | ";
    echo "尾页 | ";
}
else
{
    echo "首页 | ";
    echo "上一页 | ";
    echo "下一页 | ";
    echo "尾页 | ";
}
?>
共 <span><?= $pages ?></span> 页 | 当前第 <span><?= $page ?></span> 页 | 共 <span><?= $numrows ?></span>&nbsp条留言</p>
</div>

<?php
mysql_close();
?>

<?php
require_once("footer.php");
?>

5、post.php(提交留言页面)

<?
require_once("header.php");
?>
<div id="input">
<form method="post" action="input.php" name="form1">
    <h1>提交留言</h1>
    <p>姓名：<input type="text" name="name" size="20" class="y" /> </p>
    <p>性别：<input name="sex" type="radio" value="男" checked/> 帅锅 <input type="radio" name="sex" value="女"/> 美女</p>
    <p>Q Q　：<input type="text" name="qq" class="y" /> (可选填)</p>
    <p>Email：<input type="text" name="email" class="y" /> (可选填)</p>
    <p>留言内容：</p>
    <p><textarea name="info" rows="5" cols="40"></textarea></p>
    <p class="cen">
        <input type="submit" value="偶填好了" />
        <input type="reset" value="偶要重写">
    </p>
    <p class="cen1">银子留言板 Version 1.0</p>
</form>
</div>
</body>
</html>

6、input.php(插入留言)

<?php
require_once("conn.php");

$username = $_POST['name'];
$sex = $_POST['sex'];
$qq = $_POST['qq'];
$email = $_POST['email'];
$info = $_POST['info'];

if (strrpos( $username,"<")!==false || strrpos( $username,">")!==false||strrpos( $username,"@")!==false||strrpos( $username,"\"")!==false||strrpos( $username,"'")!==false||strrpos( $username,"_")!==false)
{
echo "<script>alert('名称不能有特殊字符！');location.href='post.php';</script>";
exit();
}

if (!ereg("^[0-9]{0,} $", $qq))//用正则检查QQ格式
{
echo "<script>alert('OICQ信息有错误！必须是数字！');location.href='post.php';</script>";
exit();
}

if( $email)
{//如果填写了邮箱就用正则检查邮箱格式
    if (!ereg("^[a-zA-Z0-9_\-\.]+@[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-\.]+ $", $email))
    {
        echo "<script>alert('email格式不正确！');location.href='post.php';</script>";
        exit();
    }
}

if(! $username)
{
    echo "<script>alert('名称不能为空哦！');location.href='post.php';</script>";
    exit();
}
elseif(! $info)
{
    echo "<script>alert('留言不能为空哦！');location.href='post.php';</script>";
    exit();
}
else
{
    $ip = getenv('REMOTE_ADDR');//获取客户端IP地址

$sql = "insert into lo (username,sex,qq,email,info,ip,submit_time) values (' $username',' $sex',' $qq',' $email',' $info',' $ip',NOW())";

$result = mysql_query( $sql);

mysql_close();

echo "<script>alert('提交成功！返回首页');location.href='index.php';</script>";
}
?>

7、update.php(修改留言页)

<?php
session_start();
require_once('conn.php');
require_once('header.php');

if( $_SESSION["key"]==1)
{
$id = $_GET['id'];
$sql = "select * from lo where id= ". $id;
$result = mysql_query( $sql);
$row = mysql_fetch_array( $result);

<div id="update">
    <form action="updatepost.php?wuleying&id=<?= $row[0] ?>" method="post">
        <h1>修改留言</h1>
        <p>姓名：<input type="text" value="<?= $row[1]?>" name="name" class="y"></input></p>
        <p>留言：</p>
        <p><textarea name="info" rows="5" cols="35"><?= $row[5] ?></textarea></p>
        <p class="cen"><input type="submit" value="偶要修改" /></p>
        <p class="cen1">银子留言板 Version 1.0</p>
    </form>

<div>

<?php
}
else
{
header('location:index.php');
}
?>

8、updatepost(修改提交页)

<?php
require_once('conn.php');

$username = $_POST['name'];
$info = $_POST['info'];
$id = $_GET['id'];
//echo $id;

$sql = "update lo set username= '". $username."',info='". $info."' where id=". $id;
mysql_query( $sql);

echo "<script>alert('修改成功！');location.href='index.php';</script>";
?>

9、delete.php(删除留言页)

<?php
session_start();
require_once('conn.php');

$id= $_GET['id'];

if( $_SESSION["key"]==1)
{
$sql = "delete from lo where id=". $id;
mysql_query( $sql);
echo "<script>location.href='index.php'</script>";
}
else
{
header('location:index.php');
}
?>

10、admin.php(管理登录页)

<?php
require_once('conn.php');
require_once('header.php');
?>

<div id="admin">
    <form method="post" action="adminpost.php">
    <h1>管理员登录</h1>
        <p>姓名 : <input type="text" name="name" size="20" class="y" /> </p>
        <p>密码 : <input type="password" name="password" size="20" class="y" /> </p>
        <p class="cen"><input type="submit" value="管理员登录" /></p>
        <p class="cen1">银子留言板 Version 1.0</p>
    </form>
</div>

11、adminpost.php(管理验证页)

<?php
session_start();
require_once('conn.php');

$name = $_POST['name'];
$password = $_POST['password'];

$sql = "select * from admin where name='". $name."'";
$result = mysql_query( $sql);
$num = mysql_num_rows( $result);

if (strrpos( $name,"<")!==false || strrpos( $name,">")!==false||strrpos( $name,"@")!==false||strrpos( $name,"\"")!==false||strrpos( $name,"'")!==false||strrpos( $name,"_")!==false)
{
echo "<script>alert('不能有特殊字符！');location.href='admin.php';</script>";
}

if( $num)
{//如果用户存在，就检查密码是否正确
    $rs = mysql_fetch_array( $result);
    if( $rs[2]!= $password)
    {
        echo "<script>alert('密码不正确，请确认后输入！');location.href='admin.php';</script>";
    }
    else
    {//用户名，密码都正确，注册SESSION变量，然后跳转到首页
        $_SESSION["key"]=1;
        echo "<script>alert('登录成功！');location.href='index.php';</script>";
    }
}
else
{//如果没有这个用户
    echo "<script>alert('没有这个用户，请确认后输入！');location.href='admin.php';</script>";
}
?>

12、adminexit.php(退出管理页)

<?php
session_start();
$_SESSION["key"] = 0;//使SESSION不为1，0为游客，1为管理员

header('location:index.php');
?>

只是些基本的东东，像MD5加密，UBB，表情图片,添加管理员账号，回复留言(-_!!)等我都没加上去，有兴趣的同学可以完善下，不足的地方请指出^_^

管理员账号:wuleying 密码:123456

2007-03-17 10:43:00 出处：

本文引用地址：http://www.cnwebshow.com/edu/html/article_3716.html

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