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php网站在线人数统计实现思路 - 站长搜索
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php网站在线人数统计实现思路

PHP 2014-12-14 11:27:15 转载来源: 网络整理/侵权必删

本文为大家讲解的是php网站在线人数统计实现的思路,感兴趣的同学参考下. db层: db_online

本文为大家讲解的是php网站在线人数统计实现思路,感兴趣的同学参考下.

db层: db_online.PHP //该函数使用户自己在线,并且检查其他用户的在线情况
  function checkOnline($userid,$tempid=null)     
{     
$conn = connect();     

//对于所有用户     
//先设置自己为在线     
$stmt = "UPDATE ".DB_NAME.".USER SET IsOnline='Y' WHERE UserID=".$userid;     
$result = query($stmt,$conn);     
//info($stmt);     
//如果当前用户是游客     
if ($tempid != null)     
{     
$stmt = "SELECT TempID FROM ".DB_NAME.".TEMPUSER WHERE    

TempID=".$tempid;     
$result = query($stmt,$conn);     
//info($stmt);     
//如果该游客还在线     
if ($row = fetch_array($result))     
{     
$stmt = "UPDATE ".DB_NAME.".TEMPUSER SET    

RequestTime='".getCurrentTime()."' WHERE TempID=".$tempid;     
$result = query($stmt,$conn);     
//info($stmt);     
}     
//该游客已经离线     
else     
{     
$stmt = "INSERT INTO ".DB_NAME.".TEMPUSER    

VALUES('".$tempid."','".getCurrentTime()."')";     
$result = query($stmt,$conn);     
//info($stmt);     
}     
}     

//查看其他用户     
//普通用户     
$stmt = "UPDATE ".DB_NAME.".USER SET IsOnline='N' WHERE ".time()." -    

unix_timestamp(RequestTime) > ".ONLINE_DURATION." AND UserGroupID != ".GUEST;     
$result = query($stmt,$conn);     

//游客     
$stmt = "DELETE FROM ".DB_NAME.".TEMPUSER WHERE ".time()." -    

unix_timestamp(RequestTime) > ".ONLINE_DURATION;     
$result = query($stmt,$conn);     
disconnect($conn);     
}     

//得到在线人数,分用户和游客     
function getOnlineNumber()     
{     
$olnum = array();     
$conn = connect();     
$stmt = "SELECT COUNT(UserID) FROM ".DB_NAME.".USER WHERE IsOnline='Y' AND    

UserGroupID != 4"; //4 为guest的用户组id     
//info ($stmt);     
$result = query($stmt,$conn);     
$olnum['user'] = result($result,0,"COUNT(UserID)");     
$stmt = "SELECT COUNT(TempID) FROM ".DB_NAME.".TEMPUSER";     
//info ($stmt);     
$result = query($stmt,$conn);     
if ($row = fetch_array($result))     
{     
$olnum['guest'] = $row['COUNT(TempID)'];     
}     
disconnect($conn);     
return $olnum; //from www.w3sky.com    
}     

     

其中的connect(), disconnect(), query(),fetch_array()函数在dbmanager.inc.PHP中     
dbmanager.inc.PHP     

define("DB_NAME","databasename");     
define("DB_USER","user");     
define("DB_PASS","pass");     
define("DB_HOST","localhost");     

function connect()     
{     
//echo "Connecting to Host:".HOST."<br>";     
$conn = mysql_connect(DB_HOST,DB_USER,DB_PASS);     
mysql_select_db(DB_NAME);     
/*    
if ($conn)    
{    
echo "Connect to database sucessfully. connection id:".$conn."<br>";    
}    
else    
{    
echo "Connect to database failed.<br>";    
}    
*/     
return $conn;     
}     

function pconnect()     
{     
return mysql_pconnect(DB_HOST,DB_USER,DB_PASS);     
}     

function disconnect($conn)     
{     
$close = mysql_close($conn);     
/*    
if ($close)    
echo "MySQL Database disconnected.<br>";    
else    
echo "MySQL Database disconnecting failed. Please try again.<br>";    
*/     
}     

function query($stmt,$conn)     
{     
return mysql_query($stmt,$conn); //from www.w3sky.com    
}     

function fetch_array($result)     
{     
return mysql_fetch_array($result);     
}     

function fetch_row($result)     
{     
return mysql_fetch_row($result);     
}     

function num_rows($result)     
{     
return mysql_num_rows($result);     
}     

function result($result,$row,$field)     
{     
return mysql_result($result,$row,$field);     
}     

   
rule层:     
rl_online.PHP     
function getOnline()     
{     
if ($userid == 2)     
{     
if (session_is_registered("tempuserid"))     
{     
checkOnline($userid,$tempuserid);     
}     
}     
else     
{     
checkOnline($userid);     
}     
return getOnlineNumber();     
}     

ui层:     
ui_online.PHP     
$online_num = getOnline();     
echo "在线人数,注册用户".$online_num['user']."人,游客".$online_num['guest']."人"; 


标签: php 网站 在线 人数 统计 实现 思路


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