5.26练习题简单留言板

功能流程

登陆功能（非内部人员不登录无法查看）
发布功能
查看功能（其中查看功能又分为指定人员查看和所有人都能查看，可以在发布信息时自定义设置）
退出功能

效果如下：

代码如下：

主界面：

<!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>
<?php
session_start();
if(empty($_SESSION['uid']))
{
    header("location:login.php");
    exit;
}
$uid = $_SESSION['uid'];
?>
<div><h2>Hello <?php if(!empty($_SESSION['uid'])){echo $_SESSION['uid'];} ?></h2><a href="fabu.php">发布信息</a>&nbsp;&nbsp;&nbsp;<a href="exit.php">退出系统</a></div>
<table width="1000" border="1" cellpadding="0" cellspacing="0">
<tr><td>发送人</td><td>发送时间</td><td>接收人</td><td>信息内容</td></tr>

<?php
include ("database.class.php");
$db = new database();
$r = $db->Query("select * from LiuYan where Recever = '{$uid}' or Recever = 'everybody'");
foreach ($r as $v)
{
    $sqlsender = "select Name from Yuangong where UserName = '{$v[1]}'";//发送者姓名
    $s1 = $db->str_ajax($sqlsender);
    $r1 = "";
    if($v[2]=="everybody")
    {
        $r1 = "所有人";
    }
    else
    {
        $sqlr = "select Name from Yuangong where UserName = '{$uid}'";
        $r1 = $db->str_ajax($sqlr);
    }
    echo "<tr><td>{$s1}</td>   
              <td>{$v[3]}</td>
              <td>{$r1}</td>
              <td>{$v[4]}</td></tr>";//发送人、发送时间、接收人、信息内容
}

?>
</table>
</body>
</html>

View Code

登陆界面：

<!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>
<h1 align="center">登录界面</h1>
<form action="logincl.php" method="post">
<div>用户名：<input type="text" name="uid" /></div>
<div>口令：<input type="password" name="pwd" /></div>
<div><input type="submit" value="登陆" />&nbsp;<input type="reset" value="复位" /></div>
</form>
</body>
</html>

View Code

登陆处理界面：

<?php
session_start();
header("Content-Type:text/html;charset=utf-8");
$UserName = $_POST['uid'];
$PassWord = $_POST['pwd'];

include ("database.class.php");
$db = new database();
$sql = "select count(*) from YuanGong where UserName = '{$UserName}' && PassWord = '{$PassWord}'";
$result = $db->Query($sql);
if($result[0][0]==1)
{
    $_SESSION['uid'] = $UserName;
    echo "正在登陆，页面跳转中~";
    echo '<script>setTimeout(\'location="main.php"\',3000)</script>';
}
else
{
    echo "用户名、密码不存在";
    echo '<script>setTimeout(\'location="login.php"\',3000)</script>';
}

View Code

信息发布界面：

<!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>
<?php
session_start();
if(empty($_SESSION['uid']))
{
    header("location:login.php");
}
$uid = $_SESSION['uid'];
include ("database.class.php");
$db = new database();
?>
<div><a href="main.php">查看信息</a>&nbsp;&nbsp;&nbsp;<a href="exit.php">退出系统</a></div>
<h1>信息发送</h1>
<form action="fbcl.php" method="post">
<div>接收人：<select name="receiver" />
             <option value="everybody">所有人</option>
             <?php
             $sql = "select firend from firend where me ='{$uid}'";
             $attr = $db->Query($sql);
             foreach ($attr as $v)
             {
                 $sqln = "select Name from YuanGong where UserName = '{$v[0]}'";
                 $name = $db->str_ajax($sqln);
                 echo "<option value='{$v[0]}'>{$name}</option>";
             }
             ?>
            </select></div>
<div>信息内容：<textarea name="content"></textarea></div>
<div><input type="submit" value="发送" />&nbsp;<input type="reset" value="复位" /></div>
</form>
</body>
</html>

View Code

信息发布处理界面：

<?php
session_start();
header("Content-Type:text/html;charset=utf-8");

if(!empty($_POST['receiver'])&&!empty($_POST['content']))
{
    $r = $_POST['receiver'];
    $c = $_POST['content'];
    $t = date("Ymdhis",time());
    $uid = $_SESSION['uid'];
    include ("database.class.php");
    $db = new database();
    $sql = "insert into LiuYan values('','{$uid}','{$r}','{$t}','{$c}',false)";
    $result = $db->Query($sql,1);
    if($result)
    {
        header("location:main.php");
    }
    else
    {
        echo "发布失败";
    }
}
else
{
    echo "请填写发布信息";    
}

View Code

退出系统界面：

<!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>
<?php
session_start();
unset($_SESSION['uid']);
header("location:login.php");
?>
</body>
</html>

View Code

posted @ 2016-05-26 22:13 天照丶鼬阅读(160) 评论(0) 编辑收藏举报

天照丶鼬

5.26练习题简单留言板

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