采用行写方式的聊天程序（之二）
lt1.php: 该程序为整个系统的入口，含有两个全局参数：chat_hh,uname分别记录当前最大的发言序号和发言者名称 <? session_start(); session_register("chat_hh"); session_register("uname"); //取数据库最大编号 include("g_fun.php"); f_connectdb(); $query;;= "select max(lt_id) as rmaxid from lt_t_content"$res = mysql_query($query, $dbh);;;$row = mysql_fetch_array($res); $f_chat_hh =;;$row["rmaxid"]; if (empty($f_chat_hh)) { $f_chat_hh = 0; } if ($f_chat_hh > 12 ) { ;;;$chat_hh=$f_chat_hh - 12; } else $chat_hh=$f_chat_hh; $un_len=strlen($name); $uname=$name; //增加在线人员信息 $query;;= "select count(*) as rcount from lt_t_online where lt_username = '".$name."'"$res = mysql_query($query, $dbh);;;$row = mysql_fetch_array($res); $lcount =;;$row["rcount"]; if ($lcount == 0) { ;;;$query;;= "insert into lt_t_online(lt_username,lt_lasttime) values(";;$query .= "'".$name."',now())";;$res = mysql_query($query, $dbh);;;} $query;;= "update lt_t_online set lt_lasttime = now(),lt_state = '0' "$query .= " where lt_username = '".$name."'"$res = mysql_query($query, $dbh);;;?> <html> <head> <title>PHP无刷新感聊天室</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <script Language=JavaScript> function wu(){ var un="<?echo $name;?>"this.f2.document.fyq.username.value=un; this.f2.document.fyq.username.size=<?echo $un_len;?>} </script> </head> <frameset cols='*,140' border=1 frameborder=1 framespacing=> <frameset rows="0,*,70,0" border="1" framespacing="0" frameborder="yes"> ;;<frame src="about:blank" name="tforlt4"> ;;<frame src="about:blank" name="f1" marginheight="3" marginwidth="5"> ;;<frame src="ltsayno.php" name="f2"> ;;<frame src="about:blank" name="bforlt3"> </frameset> <frameset rows='*,150' border=1 frameborder=1 framespacing=0> ;;<frame src='https://www.uahao.com/bcjs/ltonline.php' name='f3' marginwidth=0 scrolling='auto'> ;;<frame src="about:blank" name='f4' marginwidth=0> </frameset> </frameset> <noframes> <body bgcolor="#FFFFFF"> </body></noframes> </html>;;【本文版权归作者与奥索网共同拥有，如需转载，请注明作者及出处】;;;;
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