View file lem/komments/online.php

<?php
$data="online.dat";
$time=time();
$past_time=time()-1500;
$readdata=@fopen($data,"r") or die("    $data");
$data_array=file($data);
@fclose($readdata);
if (getenv('HTTP_X_FORWARDED_FOR'))
	$user = getenv('HTTP_X_FORWARDED_FOR');
else
	$user = getenv('REMOTE_ADDR');
$agent = getenv('HTTP_USER_AGENT');
$d=count($data_array);
for($i=0;$i<$d;$i++)
	{
	list($live_agent,$live_user,$last_time)=explode("::","$data_array[$i]");
	if($live_user!=""&&$last_time!=""&&$live_agent!=""):
	if($last_time<$past_time):
		$live_user="";
		$last_time="";
		$live_agent="";
	endif;
	if($live_user!=""&&$last_time!=""&&$live_agent!="")
		{
			if($user==$live_user&&$agent==$live_agent)
				{
				$online_array[]="$agent::$user::$time\r\n";
				}
			else
				$online_array[]="$live_agent::$live_user::$last_time";
			}
		endif;
		}
if(isset($online_array)):
foreach($online_array as $i=>$str)
	{
		if($str=="$agent::$user::$time\r\n")
			{
			$ok=$i;
			break;
			}
		}
foreach($online_array as $j=>$str)
	{
	if($ok==$j) { $online_array[$ok]="$agent::$user::$time\r\n"; break;}
	}
	endif;
		$agent=htmlspecialchars(stripslashes($agent));
	 $user=htmlspecialchars(stripslashes($user));
$writedata=@fopen($data,"w") or die("    $data");
@flock($writedata,2);
if($online_array=="") $online_array[]="$agent::$user::$time\r\n";
foreach($online_array as $str)
	fputs($writedata,"$str");
@flock($writedata,3);
@fclose($writedata);
$readdata=@fopen($data,"r") or die("    $data");
$data_array=@file($data);
@fclose($readdata);
$online=count($data_array);
print 'Online: <a href="who.php">' .$online.'</a><br/>';
?>