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php实现留言板功能（会话控制）
简介本文实例为大家分享了php留言板功能的具体代码，供大家参考，具体内容如下数据库用到的三张表一.登录界面 （denglu.php login.php）1.denglu.php<</div>
<div class="news_infos"><div id="MyContent"><p>本文实例为大家分享了php留言板功能的具体代码，供大家参考，具体内容如下</p>
<p>数据库用到的三张表</p>
<p><a href="javascript:;" onclick="showimg('/UploadFiles/2021-04-02/201705230929257.png');"><img src="/UploadFiles/2021-04-02/201705230929257.png" alt="php实现留言板功能（会话控制）" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)" border="0"/></a></p>
<p><a href="javascript:;" onclick="showimg('/UploadFiles/2021-04-02/201705230929258.png');"><img src="/UploadFiles/2021-04-02/201705230929258.png" alt="php实现留言板功能（会话控制）" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)" border="0"/></a></p>
<p><a href="javascript:;" onclick="showimg('/UploadFiles/2021-04-02/201705230929259.png');"><img src="/UploadFiles/2021-04-02/201705230929259.png" alt="php实现留言板功能（会话控制）" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)" border="0"/></a></p>
<p><strong>一.登录界面 （denglu.php login.php）</strong></p>
<p><a href="javascript:;" onclick="showimg('/UploadFiles/2021-04-02/2017052309292510.png');"><img src="/UploadFiles/2021-04-02/2017052309292510.png" alt="php实现留言板功能（会话控制）" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)" border="0"/></a></p>
<p>1.denglu.php</p>
<div class="htmlcode">
<pre class="brush:xhtml;">
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<h1>开发部内部留言板</h1>
<form action="login.php" method="post">
<div>用户名：<input type="text" name="UserName" /></div>
<div>口令：<input type="password" name="PassWord" /></div>
<input type="submit" value="登录" />
<a href="denglu.php" style="text-decoration:none"><input type="button" value="复位" /></a>
</form>
</body>
</html>
</pre>
</div>
<p>2.login.php</p>
<div class="htmlcode">
<pre class="brush:php;">
<"UserName"];
$PassWord = $_POST["PassWord"];
require "DBDA.class1.php";
$db = new DBDA();
$sql = "select PassWord from yuangong where UserName = '{$UserName}'";
$arr = $db->query($sql);
if(count($arr))
{
if($arr[0][0] == $PassWord && !empty($PassWord))
{
//存储用户名
$_SESSION["UserName"] = $UserName;
header("location:main.php");
}
}
else
{
header("location:denglu.php");
}
</pre>
</div>
<p><strong>二.主界面（main.php tuichu.php）</strong></p>
<p><a href="javascript:;" onclick="showimg('/UploadFiles/2021-04-02/2017052309292511.png');"><img src="/UploadFiles/2021-04-02/2017052309292511.png" alt="php实现留言板功能（会话控制）" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)" border="0"/></a></p>
<p>1.main.php</p>
<div class="htmlcode">
<pre class="brush:xhtml;">
<!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>
<"UserName"]))
{
header("location:denglu.php");
exit;
}
require "DBDA.class1.php";
$db = new DBDA();
$UserName = $_SESSION["UserName"];
"fabu.php">发布信息</a>
<a href="tuichu.php">退出系统</a>
</div><br /><br />
<h1>留言信息：</h1>
<table width="100%" border="1" >
<tr>
<td>发送人</td>
<td>发送时间</td>
<td>接收人</td>
<td>信息内容</td>
</tr>
<"select * from liuyan where Recever='{$UserName}' or Recever='suoyou'";
$arr = $db->query($sql);
foreach($arr as $v)
{
echo "<tr>
<td>{$v[1]}</td>
<td>{$v[3]}</td>
<td>{$v[2]}</td>
<td>{$v[4]}</td>
</tr>";
}
"htmlcode">
<div class="htmlcode">
<pre class="brush:php;">
<"UserName"]);
header("location:denglu.php");
</pre>
</div>
<p><strong>三.发送页面（fabu.php fabuchuli.php）</strong></p>
<p><a href="javascript:;" onclick="showimg('/UploadFiles/2021-04-02/2017052309292512.png');"><img src="/UploadFiles/2021-04-02/2017052309292512.png" alt="php实现留言板功能（会话控制）" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)" border="0"/></a></p>
<p>1.fabu.php</p>
<div class="htmlcode">
<pre class="brush:xhtml;">
<!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>
<div>
<a href="main.php">查看信息</a>
<a href="tuichu.php">退出系统</a>
</div>
<h1>信息发送：</h1>
<form action="fabuchuli.php" method="post">
<div>接收人：
<select name="jsr">
<option value="suoyou">所有人</option>
<"UserName"];
require"DBDA.class1.php";
$db = new DBDA();
//方法一
$sql = "select friend.Friend,yuangong.Name from friend,yuangong where friend.Friend = yuangong.UserName and friend.Me = '{$UserName}'";
$arr = $db->query($sql);
foreach($arr as $v)
{
echo "<option value='{$v[0]}'>{$v[1]}</option>";
}
//方法二
/*$sql = "select Friend from friend where Me ='{$UserName}'";
$arr = $db->query($sql);
foreach($arr as $v)
{
$v[0];
$sname = "select Name from yuangong where UserName = '{$v[0]}'";
$aname = $db->query($sname);
echo"<option value='{$v[0]}'>{$aname[0][0]}</option>";
}*/
"neirong"></textarea></div>
<input type="submit" value="发送" />
<a href="fabu.php" style="text-decoration:none"><input type="button" value="复位" /></a>
</form>
</body>
</html>
</pre>
</div>
<p>2.fabuchuli.php</p>
<div class="htmlcode">
<pre class="brush:php;">
<"UserName"];
$jsr = $_POST["jsr"];
$nr = $_POST["neirong"];
$Times = date("Y-m-d H:i:s");
require"DBDA.class.php";
$db = new DBDA();
$sql = "insert into liuyan values('','{$UserName}','{$jsr}','{$Times}','{$nr}')";
$db->query($sql,0);
header("location:fabu.php");
</pre>
</div>
<p>以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。</p></div>
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