okey.php主要处理用户登录和发布的信息处理 
<? 
if ($username)                       //是否有用户信息 
$useinfo=$username."|".$userpass; 
setcookie("FlyFoxNet",$useinfo,time() 3600);   
if ($d==q) setcookie("FlyFoxNet");     //如果是退出的话,把COOKIE置为空 
?> 
<HTML><HEAD><TITLE>发表文章</TITLE> 
 <LINK href="js/cpcw.css" rel=stylesheet /LINK> 
<? 
include "linkfox.inc.php"; 
include "info.inc.php"; 
function postf($useinfo,$title,$message)        //发帖信息处理 
{ 
       $query="select * from foxbbs order by id desc limit 1"; 
       $row=@mysql_query($query); 
       $info=@mysql_fetch_array($row); 
       if ($useinfo[2]==$info[1]&&$title==$info[3])         //检查最近一条信息是否和当前信息一样。 
          echo "<script language='JavaScript'> alert('请勿重复发帖,谢谢合作!'); </script>"; 
       else{ 
         $time=date(Y年n月j日G时i分); 
         $filename=date(YmjGis);               //文件名取当前的时间 
         $gip=getenv("REMOTE_ADDR");        //写入信息 
         $query="insert into foxbbs (usename,ftbq,title,ftdate,mesname,djnum,hfnum,ip) values ('".$useinfo[0]."','".$useinfo[14]."','".$title."','".$time."','".$filename."',1,0,'".$gip."')"; 
         $req=@mysql_query($query); 
         if ($req) {                      //如果写入成功,则给用户发帖数加一,建立内容文件 
            $query="select ftnum from useinfo where usename='".$useinfo[0]."'"; 
            $req=@mysql_query($query); 
            $ftnum=@mysql_fetch_array($req); 
            $ftnum=$ftnum[0] 1; 
            $query="update useinfo set ftnum='$ftnum' where usename='".$useinfo[0]."'"; 
            $req=@mysql_query($query); 
            $ft=$filename; 
            $fp=fopen($ft,"w");         //把所有的"<",">"符号转换成"<","&rt;"可以去除HTML标记,好像有个函数可以直接去除,但我记不到了,也没在参考手册里查到,所以用个笨法子了。 
            $message=str_replace("<","<",str_replace(">",">",$message)); 
            $message=nl2br($message);    //先去除符号再变换行,免得换行符也变成字符显示出来。 
            $f=fputs($fp,$message); 
            $fp=@fclose($fp); 
            echo "<script language='JavaScript'> alert('".$useinfo[2]."!恭喜你,发贴成功!'); </script>"; 
            } 
         else { 
            echo "<script language='JavaScript'> alert('非常报歉,因数据库原因,你的帖子没能保存!'); </script>"; 
              } 
        } 
} 
function userr($username,$userpass,$title,$message)        //用户信息校验函数 
{ 
    $query="select * from useinfo where usename='".$username."'"; 
    $req=mysql_query($query); 
    $useinfo=mysql_fetch_array($req); 
     if ($useinfo[0]==$username) 
     { 
//如果通过校检就调用信息处理函数 
       if ($userpass==$useinfo[1])  {postf($useinfo,$title,$message);return $useinfo;} 
       else { 
       echo "<script language='JavaScript'> alert('密码不正确,请检查!'); </script>"; 
       echo "<meta HTTP-EQUIV='REFRESH' CONTENT='2;URL=post.php'>"; 
       } 
     } 
     else 
     { 
       echo "<script language='JavaScript'> alert('用户不存在,请确认已注册!'); </script>"; 
     } 
} 
?> 
<META content="text/html; charset=gb2312" http-equiv=Content-Type> 
<meta HTTP-EQUIV="REFRESH" CONTENT="2;URL=foxbbs.php"> 
</head><body topmargin="0"> 
<? 
$tem=$HTTP_COOKIE_VARS[FlyFoxNet]; 
$temp=explode("|",$tem); 
$cookiem=$temp[0]; 
$useinfo=cuser($cookiem,$action); 
if (isset($message)) 
{ 
  if($username) 
  { 
     $useinfo=userr($username,$userpass,$title,$message); 
  } 
  else if($useinfo) { 
     userr($useinfo[0],$useinfo[1],$title,$message); 
     } 
  else {echo "<script language='JavaScript'> alert('你不是合法用户,不能在此论坛发帖!'); </script>";} 
} 
if ($d==q) 
{ 
echo "<script language='JavaScript'> alert('你已退出登录状态,将以游客身份返回论坛'); </script>"; 
} 
?> 
<br><br><br><br><br> 
<div align="center"><a href=foxbbs.php>如果系统未自动返回页面,请点击这里反回.</a></div> 
</body> 
</html>