这个练习做下来发现大体的步骤怎么走怎么做基本清晰，能实现可是做的很糙，没有老师细致……好多需要判断的地方没有想到
denglu.php
<!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> <style type="text/css"> .a //参照老师给的效果图，所以给div加了个样式表 {width:400px; height:50px; color:#339; font-size:28px; line-height:50px; font-weight:bold; } </style></head><body><form action="dlchuli.php"method="post">//点击登录提交到处理页面，以post传值 <div> <table width="400" height="150" border="1" > <tr > <td height="50" colspan="2" align="center"><span class="a">开发部内部留言板</span></td> </tr> <tr> <td align="right">用户名：</td> <td><input type="text" name="uid"/></td></tr>
//因为需要提交所以两个文本框都给了name值 <tr> <td align="right">口令：</td> <td><input type="text" name="pwd"/></td></tr> <tr> <td colspan="2" align="center"><input type="submit" value="登录" /> <input type="reset" value="复位" /></td> </tr> </table> </div> </form></body> </html>
dlchuli.php
<?php session_start();//开启session $uid=$_POST["uid"]; $pwd=$_POST["pwd"]; include("ChaXun.class.php"); $db=new ChaXun(); $sql="select count(*) from yuangong where UserName='{$uid}' and PassWord='{$pwd}'"; $r=$db->StrQuery($sql); if($r==1)//判断用户名是否存在 { $_SESSION["uid"]=$uid;//将获取到的用户名存入sessionheader("location:main.php"); } else {header("loacation:denglu.php"); } ?>
main.php
<!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> <style type="text/css"> .a {font-size:22px;font-weight:bold; } </style> </head><body><span class="a"><a href="fabu.php">发布信息</a></span> <span class="a"><a href="tuichu.php">退出系统</a></span> <div style="font-size:24px; font-weight:bold; margin-top:20px;">留言信息：</div> <table width="600" 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><?phpsession_start();if(empty($_SESSION["uid"]))//判断用户是否存在，存在获取uid{header("location:denglu.php");exit;}$uid = $_SESSION["uid"];include("ChaXun.class.php");$db=new ChaXun();$sql="select * from liuyan where Recever='{$uid}' or Recever='suoyou' ";$attr=$db->Query($sql);foreach($attr as $v){ $sqlname = "select Name from yuangong where username='{$v[1]}'";$name = $db->StrQuery($sqlname);//发送者姓名//处理接收者姓名$jsr = "";if($v[2]=="suoyou")//接收为所有人时{$jsr = "所有人";}else{$sqln = "select Name from yuangong where username='{$uid}'"; $jsr = $db->StrQuery($sqln);}echo"<tr> <td>{$name}</td> <td>{$v[3]}</td> <td>{$jsr}</td> <td>{$v[4]}</td> </tr>";}?> </table> </body> </html>
fabu.php
<!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> <style type="text/css"> .a {font-size:22px;font-weight:bold; } </style> </head> <?php session_start();if(empty($_SESSION["uid"]))//判断用户是否存在 {header("location:denglu.php");exit; }$uid = $_SESSION["uid"];include("ChaXun.class.php"); $db = new ChaXun(); ?> <body><form action="fabuchuli.php" method="post"> <span class="a"><a href="main.php">查看信息</a></span> <span class="a"><a href="tuichu.php">退出系统</a></span> <div style="font-size:24px; font-weight:bold; margin-top:20px;">信息发送：</div> <table width="400" border="1"><tr> <td align="right">接收人：</td> <td> <select name="jieshou">//下拉先把所有人这种情况摘出来，再去遍历<option value="suoyou">所有人</option><?php$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 = $db->StrQuery($sqln);echo"<option value='{$v[0]}'>{$name}</option>";}?></select></td></tr><tr> <td align="right">信息内容：</td> <td><textarea name="nr"></textarea></td></tr><tr> <td colspan="2" align="center"> <input type="submit" value="发送" /> <input type="reset" value="复位" /></td> </tr> </table> </form></body> </html>
fabuchuli.php
<?php session_start(); $uid=$_SESSION["uid"]; $jsr=$_POST["jieshou"]; $nr=$_POST["nr"]; $time=date("Y-m-d H:i:s",time());//格式化当前时间戳 include("ChaXun.class.php"); $db=new ChaXun(); $sql="insert into liuyan values('','{$uid}','{$jsr}','{$time}','{$nr}','')"; echo $sql; if($db->Query($sql,1)) {header("location:fabu.php"); }?>
tuichu.php
<?php //这个退出自己做的时候是直接超链接的登录页面，没有考虑到要unset session_start(); unset($_SESSION["uid"]); header("location:denglu.php"); ?>
