資料庫結構：(庫名：lyb)
表一: admin
欄位: id(int11) name(varchvr) password(varchvr)
表二: lo
欄位: id(int11) username(varchvr) sex(varchvr) qq(varchvr) email(varchvr) info(text) ip(varchvr) submit_time(datetime)
1 conn.php(串連資料庫檔案)
<?php
mysql_connect("localhost","root","");//串連資料庫
mysql_select_db("lyb");//選擇資料庫
?>
2 header.php(公用頭部檔案)
<!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>PHP和MYSQL聯合打造簡單留言本程式</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">偶要發表</a></li>
<?php
session_start();
if($_SESSION["key"]==1){//如果擷取的SESSION為1則顯示管理項
?>
<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">PHP和MYSQL聯合打造簡單留言本程式</div>
</div>
3 footer.php(公用底部檔案)
<?php
$counterFile="conter.xml";
function displayCounter($counterFile){
$fp = fopen($counterFile,"rw");
$num = fgets($fp,5);
$num += 1;
print "<div id=\"footer\">簡單留言板 您是第 "."$num"." 位無聊的銀</div>";
exec("rm -rf $counterFile");
exec("echo $num > $counterFile");
}
if(!file_exists($counterFile)){
exec("echo 0 > $counterFile");
}
displayCounter($counterFile);
?>
</body>
</html>
4 index.php(首頁)
<?php
require_once("conn.php");
require_once("header.php");
session_start();
//分頁代碼開始
$pagesize = 10;//設定每頁顯示條數
$rs = mysql_query("select count(*) from lo");//取得記錄總數，計算總頁數用
$myrow = mysql_fetch_array($rs);
$numrows = $myrow[0];//計算總記錄
$pages = intval($numrows/$pagesize);
if($numrows%$pagesize)$pages++;//設定頁數
if(isset($_GET['page']))
{
$page = intval($_GET['page']);
}
else
{
$page = 1;//設為第一頁
}
$offset = $pagesize*($page-1);//計算記錄位移量
//分頁代碼結束
$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")//這個使性別改成你想要的名稱^_^
{
$sex = "帥鍋";
}
else
{
$sex = "美女";
}
?>
<div id="show">
<p class="num">第 [<?= $row[0] ?>] 條留言<p>
<p class="unline">留言人:<span class="blue"><?= $row[1]?></span> 性別:<?= $sex ?> 留言時間：<?= $row[7] ?> <? if($row[3]) {?> <a href="http://wpa.qq.com/msgrd?V=1&Uin=<?= $row[3] ?>&Site=http://www.webjx.com&Menu=yes"><img src="http://www.webjx.com/htmldata/2007-05-24/img/qq.gif" alt="<?= $row[3]?>" /></a><? } ?><? if($row[4]){ ?> <a href="mailto:<?= $row[4] ?>"><img src="http://www.webjx.com/htmldata/2007-05-24/img/email.gif" alt="<?= $row[4]?>" /></a> <? }?><? if($_SESSION["key"]==1){ ?> IP:<?= $row[6] ?> <a href="update.php?wuleying&id=<?= $row[0]?>">更改</a> <a href="delete.php?wuleying&id=<?= $row[0]?>">刪除</a><?}?></a></p>
<p class="blue">留言內容:</p>
<div id="show_info"><?= nl2br(htmlspecialchars($row[5])) ?></div>
</div>
<?php
}
}
else
{
echo "<div id=\"show\">無資料......</div>";
}
?>
<div id="show_page">
<p>
<?php
$first=1;
$prev=$page-1;
$next=$page+1;
$last=$pages;
if($page==1&&$pages>1)
{
echo "首頁 | ";
echo "上一頁 | ";
echo "<a href=\"index.php?page=".$next."\">下一頁</a> | ";
echo "<a href=\"index.php?page=".$last."\">尾頁</a> | ";
}
elseif($page>=1&&$page!=$pages&&$num>0)
{
echo "<a href=\"index.php?page=".$first."\">首頁</a> | ";
echo "<a href=\"index.php?page=".$prev."\">上一頁</a> | ";
echo "<a href=\"index.php?page=".$next."\">下一頁</a> | ";
echo "<a href=\"index.php?page=".$last."\">尾頁</a> | ";
}
elseif($page==$pages&&$page!=1)
{
echo "<a href=\"index.php?page=".$first."\">首頁</a> | ";
echo "<a href=\"index.php?page=".$prev."\">上一頁</a> | ";
echo "下一頁 | ";
echo "尾頁 | ";
}
elseif($page==$pages)
{
echo "首頁 | ";
echo "上一頁 | ";
echo "下一頁 | ";
echo "尾頁 | ";
}
else
{
echo "首頁 | ";
echo "上一頁 | ";
echo "下一頁 | ";
echo "尾頁 | ";
}
?>
共 <span><?= $pages ?></span> 頁 | 當前第 <span><?= $page ?></span> 頁 | 共 <span><?=$numrows ?></span> 條留言</p>
</div>
<?php
mysql_close();
?>
<?php
require_once("footer.php");
?>
5 post.php(提交留言頁面)
<?
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>性別 ：<input name="sex" type="radio" value="男" checked/> 帥鍋 <input type="radio" name="sex" value="女"/> 美女</p>
<p>Q Q ：<input type="text" name="qq" class="y" /> (可選填)</p>
<p>Email：<input type="text" name="email" class="y" /> (可選填)</p>
<p>留言內容：</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="偶要重寫">
</p>
<p class="cen1">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($username,"_")!==false)
{
echo "<script>alert('名稱不能有特殊字元！');location.href='post.php';</script>";
exit();
}
if (!ereg("^[0-9]{0,}$",$qq))//用正則檢查QQ格式
{
echo "<script>alert('OICQ資訊有錯誤！必須是數字！');location.href='post.php';</script>";
exit();
}
if($email)
{//如果填寫了郵箱就用正則檢查郵箱格式
if (!ereg("^[a-zA-Z0-9_\-\.]+@[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-\.]+$",$email))
{
echo "<script>alert('email格式不正確！');location.href='post.php';</script>";
exit();
}
}
if(!$username)
{
echo "<script>alert('名稱不可為空哦！');location.href='post.php';</script>";
exit();
}
elseif(!$info)
{
echo "<script>alert('留言不可為空哦！');location.href='post.php';</script>";
exit();
}
else
{
$ip = getenv('REMOTE_ADDR');//擷取用戶端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！返回首頁');location.href='index.php';</script>";
}
?>
7 update.php(修改留言頁)
<?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">留言板 Version 1.0</p>
</form>
<div>
<?php
}
else
{
header('location:index.php');
}
?>
8 updatepost(修改提交頁)
<?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(刪除留言頁)
<?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(管理登入頁)
<?php
require_once('conn.php');
require_once('header.php');
?>
<div id="admin">
<form method="post" action="adminpost.php">
<h1>管理員登入</h1>
<p>姓名 : <input type="text" name="name" size="20" class="y" /> </p>
<p>密碼 : <input type="password" name="password" size="20" class="y" /> </p>
<p class="cen"><input type="submit" value="管理員登入" /></p>
<p class="cen1">留言板 Version 1.0</p>
</form>
</div>
11 adminpost.php(管理驗證頁)
<?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('不能有特殊字元！');location.href='admin.php';</script>";
}
if($num)
{//如果使用者存在，就檢查密碼是否正確
$rs = mysql_fetch_array($result);
if($rs[2]!=$password)
{
echo "<script>alert('密碼不正確，請確認後輸入！');location.href='admin.php';</script>";
}
else
{//使用者名稱，密碼都正確，註冊SESSION變數，然後跳轉到首頁
$_SESSION["key"]=1;
echo "<script>alert('登入成功！');location.href='index.php';</script>";
}
}
else
{//如果沒有這個使用者
echo "<script>alert('沒有這個使用者，請確認後輸入！');location.href='admin.php';</script>";
}
?>
12 adminexit.php(退出管理頁)
<?php
session_start();
$_SESSION["key"] = 0;//使SESSION不為1，0為遊客，1為管理員
header('location:index.php');
?>
只是些基本的東東，像MD5加密，UBB，表情圖片,添加管理員帳號，回複留言(-_!!)等我都沒加上去，有興趣的同學可以完善下。
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