简单的PHP留言板制作
做基础的留言板功能 需要三张表:
员工表,留言表,好友表
首先造一个登入页面:
<form action="drcl.php" method="post"> <div>帐号:<input type="text" name="zhang"/></div> <div>口令:<input type="text" name="mi"/></div><input type="submit" value="登入"/></form>
上图:
不多说,没毛病
然后来写处理页面:
<?phpsession_start();//session存储数据include ("db.class.php");//引用类$db = new db();//造方法$zhang = $_POST["zhang"];$mi = $_POST["mi"];$sql = "select mi from yuangong WHERE zhang = '{$zhang}'";$arr = $db->Query($sql);if(!empty($mi)&&$mi = $arr &&!empty($zhang)){ $_SESSION["zhang"] = $zhang; //即将跳转页面之前,把帐号存到session里面 header("location:zym.php");}else{ echo "登入失败了";}?>
正常的处理登入的页面只不过把账号存了一下session
登入上进入主页面
再来是主页面了:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head> <title>无标题文档</title></head><body><h1>留言板</h1><div><a href="fbym.php" rel="external nofollow" >发布信息</a></div><div><a href="ddrr.php" rel="external nofollow" rel="external nofollow" onclick=" return confirm('注销当前用户?')">注销登入</a></div><table border="1" cellpadding="0" cellspacing="0" width="100%"> <tr> <td>发件人</td> <td>收件人</td> <td>发布时间</td> <td>内容</td> </tr> <?php session_start(); //存储数据 if(empty($_SESSION["zhang"])) { header("location:ddrr.php"); //防止输入网址进入 exit; } $zhang = $_SESSION["zhang"]; include ("../db.class.php"); $db = new db(); $sql = "select name from yuangong WHERE zhang = '{$zhang}'"; $attr = $db->Query($sql); //取到登入的name echo "<h5>欢迎你:{$attr[0][0]}</h5>"; //输出登入的name $sql = "select * from liuyan WHERE shou = '{$zhang}' or shou = 'all' ORDER BY times DESC "; //条件!!我只看自己或所有人的 $arr = $db->Query($sql); foreach ($arr as $v){ $shou = aname($v[2]); $fa = aname($v[1]); //用方法 echo "<tr> <td>{$fa}</td> <td>{$shou}</td> <td>{$v[3]}</td> <td>{$v[4]}</td> </tr>"; } //返回姓名 function aname($zhang) { global $db; //设置全局变量! if($zhang == "all") { //如果接收到的是all,显示: return "所有人"; } else { //如果是自己的,根据帐号查name $sql = "select name from yuangong WHERE zhang ='{$zhang}' "; $arr = $db->Query($sql); //二维数组 return $arr[0][0]; } } ?></table></body></html>
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