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一个简单的PHP&MYSQL留言板源码

2016-02-24 12:37 911 查看
admin.php         

adminexit.php     

adminpost.php     

conn.php          

delete.php        

footer.php        

header.php        

index.php         

input.php         

post.php          

update.php        

updatepost.php    

admin.php       

<?php

//10 admin.php(管理登录页)

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>

  

adminexit.php     

<?php

//12 adminexit.php(退出管理页)

session_start();

$_SESSION["key"] = 0;//使SESSION不为1,0为游客,1为管理员

header('location:index.php');

?>

 

adminpost.php  

<?php

//11 adminpost.php(管理验证页)

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>";

  echo "<a href=\"index.php\">登录成功</a>";

    }

}

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>";

}

?>

   

conn.php      

<?php

//conn.php (连接数据库文件)

mysql_connect("localhost","root","");//连接数据库

mysql_select_db("lyb");//选择数据库

?>

    

delete.php     

<?php

//9 delete.php(删除留言页)

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');

}

?>

   

footer.php    

<?php

//3 footer.php(公用底部文件)

$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>

    

header.php    

<!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> 

<?php session_start();

//2 header.php(公用头部文件)

 ?> 

<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();//DOFY同学指出本句前不能有任何输出内容,就此改正 

            if(isset($_SESSION["key"]) && $_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>

    

index.php     

<?php

//4 index.php(首页)

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]=="m")//这个使性别改成你想要的名称^_^

        {

            $sex = "帅锅";

        }

        else

        {

            $sex = "美女";

        }

?>

<div id="show">

    <p class="num">第 [<?= $row[0] ?>] 条留言<p>

    <p class="unline">留言人:<span class="blue"><?= $row[1]?></span>  性别:<?= $sex ?>  留言时间:<?= $row[7] ?> <? if($row[3]) {?> <a href="http://wpa.qq.com/msgrd?V=1&Uin=<?= $row[3] ?>&Site=http://www.loai.cn&Menu=yes"><img
src="img/qq.gif" alt="<?= $row[3]?>" /></a><? } ?><? if($row[4]){ ?> <a href="mailto:<?= $row[4] ?>"><img src="img/email.gif" alt="<?= $row[4]?>" /></a> <? }?><? if(isset($_SESSION["key"]) && $_SESSION["key"]==1){ ?> IP:<?= $row[6] ?>  <a href="update.php?wuleying&id=<?=
$row[0]?>">更改</a> <a href="delete.php?wuleying&id=<?= $row[0]?>">删除</a><?}?></a></p>

    <p class="blue">留言内容:</p>

    <div id="show_info"><?= nl2br(htmlspecialchars($row[5])) ?></div>

</div>

<?php

    }

}

else

    {

        echo "<div id=\"show\">无数据......</div>";

    }

?>

<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> 条留言</p>

</div>

<?php

mysql_close();

?>

<?php

require_once("footer.php");

?>

    

input.php         

<?php

//6 input.php(插入留言)

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();

}

//原来:ereg("^[0-9]*$",$page)变成:preg_match("/^[0-9]*$/",$page)

//if (!ereg("^[0-9]{0,}$",$qq))//用正则检查QQ格式

if (!preg_match("/^[0-9]{0,}$/",$qq))

{

    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))

 if (!preg_match("/^[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>";

 echo "$username"." "."$sex"." "."$qq"." "."$email"." "."$info"." "."$ip";

 echo "<a href=\"index.php\">提交成功!返回首页</a>";

}

?>

 

post.php      

<?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="m" checked/> 帅锅 <input type="radio" name="sex" value="f"/> 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>

    

update.php        

<?php

//7 update.php(修改留言页)

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');

}

?>

updatepost.php    

<?php

//8 updatepost.php(修改提交页)

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>";

?>
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