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/*
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*/
<? session_cache_limiter("private,max-age=10800"); ?>
<? @session_start(); ?>
<? include("Function.php"); ?>
<? include("ConnDB.php"); ?>
<? include("Const.php"); ?>
<?php
//ÔÚÏßÓû§´¦Àí
if (isset($user_name))//Èç¹ûsessionдÁË,ÄÇôÓû§ÒѾ­µÇ½
{
$result = mysql_query("SELECT * from aliang_online WHERE OnlineUser   = '$user_name' ") or die($die_msg."Óû§ÓÐûÓÐдÈëÔÚÏßÁбí");
    //²éѯ¿´¿´Óû§ÓÐûÓÐдÈëÔÚÏßÁбí
$num = mysql_num_rows($result);
if ($num != 0) //Èç¹ûÒѾ­Ð´ÈëÁËÔÚÏßÁбí,¾Í¸üÐÂ×îºóÔÚÏßʱ¼äºÍ״̬
{   //$now_timeÊÇ×Ô¶¨ÒåµÄÒ»¸ö³£Á¿,´ú±íÏÖÔÚʱ¼äµÄʱ¼ä´Á,¸Ã³£Á¿ÔÚconst.phpÖÐÉèÖÃ
   mysql_query("UPDATE aliang_online SET LastTime = $now_time,UserState = 1 WHERE OnlineUser = '$user_name' ") or die($die_msg."Èç¹ûдÁË,ÄǾ͸üÐÂʱ¼ä");
}
else   //Èç¹ûÓû§Ã»ÓÐÔÚÔÚÏßÁбí,ÄÇô¾Í°Ñ¸ÃÓû§Ð´ÈëÔÚÏßÓû§ÁÐ±í    
{
   mysql_query("INSERT INTO aliang_online SET OnlineUser = '$user_name' , LoginIP = '$REMOTE_ADDR' , LoginTime = $now_time , LastTime = $now_time , UserState = 1 ") or die($die_msg."Èç¹ûûÓÐд,ÄǾÍд");
}
}
else    //Èç¹ûÓû§Ã»Óеǽ,»òÕßÊǷÿÍ,ÄÇô¾ÍʹÓÃIPµØÖ·À´¶¨Î»ÊÇ·ñÒѾ­ÔÚÔÚÏßÁбí
{
$result = mysql_query("SELECT * from aliang_online WHERE LoginIP = '$REMOTE_ADDR' ") or die($die_msg."Èç¹ûÊǷÿÍ,¾Í¿´¿´ÓÐûËûIP");
$num = mysql_num_rows($result);
if ($num != 0) //Èç¹û·Ã¿ÍµÄIPµØÖ·ÒѾ­ÔÚÁбíÖÐÁË,ÄÇô¾Í¸üзÿÍ×îºóʱ¼äºÍ״̬
{
   mysql_query("UPDATE aliang_online SET LastTime = $now_time,UserState = 1 WHERE LoginIP = '$REMOTE_ADDR' ") or die($die_msg."Èç¹ûÓÐIP,¾Í¸üÐÂËûµÄʱ¼ä");
}
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