php简易留言板程序代码

2024-05-04 23:06:16

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这是一个最基础的留言板程序了，但是己经有了留言板程序基本功能，很适合于php初学者用用，学习用啊，当然也可以用于企业网站也是很不错的哦。

index.php

<?php

session_start();

$con=mysql_connect('localhost','root','root') or die('链接数据库失败！');

mysql_query('set names utf8');

mysql_select_db('GuestBook');

$pagesize = 10;//每一页显示多少留言记录

if(isset($_GET['page'])&&$_GET['page']!='') $page=$_GET['page'];

else $page=0;

$sql = "SELECT a . * , b.name, b.email, b.qq, c.revert_time, c.revert

  FROM post a

  LEFT JOIN revert c ON ( a.id = c.post_id ) , guest b

  WHERE a.guest_id = b.id

  ORDER BY a.id DESC";

$numRecord = mysql_num_rows(mysql_query($sql));

$totalpage = ceil($numRecord/$pagesize);

$recordSql = $sql. " LIMIT ".$page*$pagesize.",".$pagesize;

$result = mysql_query($recordSql);

?>

<!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=utf-8" />

<title>PHPiask简易留言板</title>

<style type="text/css">



</style>

<script language="javascript">

function checkInput(){

var Email = document.getElementById('email');

var QQ = document.getElementById('qq');

var name = document.getElementById('name');

var post = document.getElementById('post');

//验证用户名：不能超过10个字符（5个汉字），不能输入非法字符，不能为空

nameValue = name.value.replace(/s+/g,"");

var SPECIAL_STR = "~!%^&*();"?><[]{}/|,:/=+—";

var nameflag=true;

for(i=0;i<nameValue.lenght;i++){

  if (SPECIAL_STR.indexOf(nameValue.charAt(i)) !=-1)

  nameflag=false;

}

if(nameValue==''){

  alert('请填写用户名称！');

  return false;

}

if(nameValue.length>10){

  alert('用户名称最多10个字符（5个汉字）！');

  return false;

}



if(nameflag===false){

  alert('用户名称不能包含非法字符请更改！');

  return false;

}

//验证QQ号码

var par =/^[1-9]d{4,12}$/;

if(QQ.value!=''&&!par.test(QQ.value)){

  alert('请输入正确的QQ号码');

  return false;

}

//验证Email地址

var emailpar = /^[w-]+(.[w-]+)*@[w-]+(.[w-]+)+$/;

if(Email.value!=''&&!emailpar.test(Email.value)){

  alert('请输入正确的邮箱地址！');

  return false;

}

if(QQ.value==''&&Email.value==''){

  alert('邮箱和QQ必选其一');

  return false;

}

if(post.value==""){

  alert('请输入留言内容！');

  return false;

}

if(post.value.length>400){

  alert('留言内容太长！');

  return false;

}

}

</script>

</head>

<body>

<table width="800" border="0" align="center">

  <tr>

    <td height="80" bgcolor="#003366"><span class="STYLE1"> 简易留言板教程（<a href="http://www.phpiask.com">PHP iask</a>）</span></td>

  </tr>

  <tr>

    <td height="5" bgcolor="#efefef"></td>

  </tr>

</table>

<table width="800" border="0" align="center" bgcolor="#fefefe">

<?php

while($rs=mysql_fetch_object($result)){

?>

  <tr>

    <td class="tdhx">留言人：<?php echo $rs->name?> |Email：<?php echo $rs->email?>|QQ:<?php echo $rs->qq?>|留言时间：<?php echo date("Y-m-d H:i:s",$rs->post_time+8*3600)?></td>

  </tr>

  <?php

  if(isset($_SESSION['login'])&&$_SESSION['login']){

  ?>

    <tr>

    <td class="tdhx"><a href="revert.php?id=<?php echo $rs->id?>">回复</a> | <a href="delete.php?id=<?php echo $rs->id?>">删除</a></td>

  </tr>

  <?php

  }

  ?>

  <tr>

    <td>留言内容：<?php echo nl2br(htmlspecialchars($rs->post))?><br/>

    <font color="Red">

    回复内容：<?php echo nl2br(htmlspecialchars($rs->revert))?>[<?php if($rs->revert_time!="") echo date("Y-m-d H:i:s",$rs->revert_time+8*3600)?> ]

    </font>



    </td>

  </tr>

  <tr><td height="3px"  bgcolor="##FF6600"></td></tr>

<?php

}

?>

</table>

<table width="800" border="0" align="center" bgcolor="#B1C3D9">

  <tr>

    <td >

<?php

if($page>0) echo "<a href='index.php?page=".($page-1)."'>上一页|</a>" ;

if($page<$totalpage-1) echo "<a href='index.php?page=".($page+1)."'>下一页</a>" ;

?></td>

  </tr>

</table><form action="post.php" method="post" id="postForm" name="postForm">

<table width="800" border="0" align="center" cellspacing="1" bgcolor="#efefef">



  <tr>

    <td width="117" bgcolor="#FFFFFF">姓名：</td>

    <td width="673" bgcolor="#FFFFFF"><label>

      <input type="text" name="name" id="name" />

    </label></td>

  </tr>

  <tr>

    <td bgcolor="#FFFFFF">Email：</td>

    <td bgcolor="#FFFFFF"><label>

      <input type="text" name="email" id="email" />

    </label></td>

  </tr>

  <tr>

    <td bgcolor="#FFFFFF">QQ：</td>

    <td bgcolor="#FFFFFF"><label>

      <input type="text" name="qq" id="qq"/>

    </label></td>

  </tr>

  <tr>

    <td colspan="2" bgcolor="#FFFFFF">留言内容：</td>

  </tr>

  <tr>

    <td colspan="2" bgcolor="#FFFFFF"><label>

      <textarea name="post" id="post" cols="40" rows="5"></textarea>

    </label></td>

  </tr>

  <tr>

    <td colspan="2" bgcolor="#FFFFFF"><label>

      <input type="submit" name="Submit" value="提交" onclick="return checkInput();"/>

               

      <input type="reset" name="Submit2" value="重置" />

    </label><a href="login.php">管理员登录</a></td>

  </tr>

</table></form>

</body>

</html>

post.php文件

<?php

header('content-type:text/html;charset=utf-8');

//如果PHP设置的自动转义函数未开启，就转义这些值

if(!get_magic_quotes_gpc()){

foreach ($_POST as &$items){

$items = addslashes($items);

}

}

$name = $_POST['name'];

$qq = $_POST['qq'];

$email = $_POST['email'];

$post = $_POST['post'];

if($name==""||strlen($name)>10){

echo <<<tem

<script language="javascript">

alert('请输入正确的有户名');

history.go(-1);

</script>

tem;

exit();

}

if($qq==""&&$email==""){

echo <<<tem

<script>

alert('Email和QQ必须输入一个！');

history.go(-1);

</script>

tem;

exit();

}

if($qq!=""&&(!is_numeric($qq)||$qq>9999999999||$qq<=9999)){

echo <<<tem

<script>

alert("请输入正确的QQ号码");

history.go(-1);

</script>

tem;

exit();

}

if($email!=""&&(!ereg("^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+",$email)||strlen($email)>60)){

echo <<<tem

<script>

alert("请输入正确的Email");

history.go(-1);

</script>

tem;

exit();

}

if(strlen($post)>400){

echo <<<tem

<script>

alert("输入的留言内容太长！");

history.go(-1);

</script>

tem;

exit();

}

//链接数据库

$con=mysql_connect('localhost','root','root') or die('链接数据库失败！');

mysql_query('set names utf8');

mysql_select_db('GuestBook');

//把客户信息插入guest表

$insertSql="insert into guest (name,qq,email) values ('$name','$qq','$email')";

if(mysql_query($insertSql)){

$guestid = mysql_insert_id();

}

else{

echo $insertSql;

echo mysql_error();

echo "数据插入失败!";

exit();

}

//把以上插入取得的客户id和留言信息插入到post表中

$post_time = time();

$insertPostSql = "insert into post(guest_id,post,post_time) values('$guestid','$post','$post_time')";

if(mysql_query($insertPostSql)){

echo <<<tem

<script>

alert("留言成功");

location.href="index.php";

</script>

tem;

}

else{

echo <<<tem

<script>

alert("留言失败");

location.href="index.php";

</script>

tem;

}

?>

下面为后台管理管理的页面login.php

<?php

session_start();

if(isset($_POST['Submit'])){

if(!get_magic_quotes_gpc()){

  foreach ($_POST as &$items){

   $items = addslashes($items);

  }

}

if($_POST['username']=='phpiask'&&md5($_POST['password'])=='6dc88b87062a5de19895e952fa290dad'){

  $_SESSION['login']=true;

  echo "<script>alert('管理员登录成功');location.href='index.php';</script>";

  exit();

}

else {

  echo "<script>alert('登录失败！');</script>";

}

}

?>

<!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=utf-8" />

<title>无标题文档</title>

</head>

<body>

<table>

<tr>

<td>

<form action="login.php" method="POST" name="form1">

用户名：<input type="text" name="username" size="20"/>

密码：<input type="password" name="password" size="20">

<input type="submit" value="登录" name="Submit"/>

<input type="button" onclick="javascript：location.href='index.php'" value="放弃"/>

</form>

</td>

</tr>

</table>

</body>

</html>

删除留言的delete.php

<?php

session_start();

header('content-type:text/html;charset=utf-8');

$con=mysql_connect('localhost','root','root') or die('链接数据库失败！');

mysql_query('set names utf8');

mysql_select_db('GuestBook');

if(!$_SESSION['login']){

echo "<script>alert('权限不足!');location.href='index.php';</script>";

exit();

}

if(isset($_GET['id'])&&$_GET['id']!=""){

$delRevertSql="delete from revert where post_id=".$_GET['id'];

mysql_query($delRevertSql);



$delGuestSql="delete from guest where id = (select guest_id from post where id=".$_GET['id'].")";

mysql_query($delGuestSql);



$delPostSql="delete from post where id=".$_GET['id'];

mysql_query($delPostSql);



if(mysql_error()==""){

  echo "<script>alert('删除成功!');location.href='index.php';</script>";

}

}

?>

回复留言的revert.php文件

<?php

session_start();

$con=mysql_connect('localhost','root','root') or die('链接数据库失败！');

mysql_query('set names utf8');

mysql_select_db('GuestBook');

if(!$_SESSION['login']){

echo "<script>alert('没有登录不能回复!');location.href='index.php';</script>";

exit();

}

if($_POST['Submit']){

if(!get_magic_quotes_gpc()){

  foreach ($_POST as $items){

   $items = addslashes($items);

  }

}

if(strlen($_POST['revert'])>400){

  echo "<script>alert('回复内容过长!');history.go(-1);</script>";

  exit();

}

$post_id = $_POST['post_id'];

$revert = $_POST['revert'];

$insertRevertSql = "insert into revert (post_id,revert,revert_time) value('$post_id','$revert','$time')";

if(mysql_query($insertRevertSql)){

  echo "<script>alert('回复成功');location.href='index.php';</script>";

  exit();

}

else {

  echo "<script>alert('回复失败!');history.go(-1);</script>";

}

}

?>

<!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=utf-8" />

<title>无标题文档</title>

</head>

<body>

<table>

<tr>

<td>

<form action="revert.php" method="POST" name="form1">

回复内容：<textarea name="revert" cols="30" rows="5" id="revert"></textarea>

<input type="hidden" name="post_id" value="<?php echo $_GET['id']?> "size="20">

<input type="submit" value="回复" name="Submit"/>

<input type="button" onclick="javascript：history.go(-1);" value="放弃"/>

</form>

</td>

</tr>

</table>

</body>

</html>