📄 navigation.php
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<?php
function conndb()
{
$db=@mysql_pconnect("localhost","root","307910");
if($db==false)
{
print "Database failed!";
exit();
}
return $db;
}
if(isset($action)&&!strcmp($action,"exit"))
{
session_start();
$db=conndb();
$query="delete from onlineusers where login=\"username\"";
$res=@mysql_db_query("community",$query,$db);
session_unregister("username");
session_unregister("whichboard");
header("Location:forum.php");
exit();
}
?>
<html>
<head>
<title>导航区</title></head>
<body bgcolor=#8cc9ec>
<table align=center>
<tbody>
<tr>
<td aligb=center><A href="list.php?action=listuser" target=top>显示在线用户</A></td></tr>
<tr>
</td>
<hr size=1>
<table>
<tbody>
<tr>
<th>本站社区</th></tr>
<tr>
<td><A href="list.php?cata=1" target=top>讨论区1</A></td></tr>
<tr>
<td><A href="list.php?cata=2" target=top>讨论区2</A></td></tr>
<tr>
<td><A href="list.php?cata=3" target=top>讨论区3</A></td></tr>
<tr>
<td><A href="list.php?cata=4" target=top>讨论区4</A></td></tr>
<tr>
<td><A href="list.php?cata=5" target=top>讨论区5</A></td></tr>
</tbody></table></td></tr>
<tr>
<td><A href="list.php?action=refresh" target=top>刷新文章列表</A></td></tr>
<tr>
<td><A href="content.php?action=new" target=bottom>发表新文章</A></td></tr>
<tr>
<td><hr size=1></td></tr>
<tr>
<td><A href="navigation.php?action=exit" target="_parent">离开</A></td></tr>
</tbody>
</table>
</body>
</html>
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