pocitadlo online uzivatelov

http://www.blueboard.cz/

<div id="rtoc">&nbsp;</div>
<script type="text/javascript" language="javascript">
if (window.XMLHttpRequest) {
    xmlHttp = new XMLHttpRequest();
} else if (window.ActiveXObject) {
    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
function callServer(url) {
  xmlHttp.open("GET", url, true);
  xmlHttp.onreadystatechange = updatePage;
  xmlHttp.send(null);
}
function updatePage() {
  if (xmlHttp.readyState == 4) {
    var response = xmlHttp.responseText;
    document.getElementById("rtoc").innerHTML = response;
    setTimeout("callServer('rtoc.php')",2500);
  }
}
callServer("rtoc.php");
</script>

<?php
//      _              _ _                                  _           
//     | |            | (_)                                | |  v1.00.0 
// _ __| |_ ___  _ __ | |_ _ __   ___  ___ ___  _   _ _ __ | |_ ___ _ __
//| '__| __/ _ \| '_ \| | | '_ \ / _ \/ __/ _ \| | | | '_ \| __/ _ \ '__|
//| |  | || (_) | | | | | | | | |  __/ (_| (_) | |_| | | | | ||  __/ |   
//|_|   \__\___/|_| |_|_|_|_| |_|\___|\___\___/ \__,_|_| |_|\__\___|_|   
// The Real-Time AJAX Users Online Counter       http://www.j-fx.ws/rtoc/
/////////////////////////////////////////////////////////////////////////

$timeout = 5; //Change this if you want. Default is 5 seconds.

session_start();
header("Cache-Control: no-cache, must-revalidate");

//###################### CALCULATE USERS ONLINE #########################

$userip = $_SERVER['REMOTE_ADDR'];
$time = time();
$usersonline = 0;
$alreadyonline = 0;

$onlinetxt = fopen("./online.txt","r+");
flock($onlinetxt,2);
while (!feof($onlinetxt))
$user[] = chop(fgets($onlinetxt,65536));

fseek($onlinetxt,0,SEEK_SET);
ftruncate($onlinetxt,0);
foreach ($user as $line) {
  @list($savedip,$savedtime) = split("\|",$line);
  if ($savedip == $userip) {
    $savedtime = $time;
    $alreadyonline = 1;
  }
  if ($time < $savedtime + ($timeout)) {
    fputs($onlinetxt,"$savedip|$savedtime\n");
    $usersonline = $usersonline + 1;
  }
}
if (!$alreadyonline) {
  fputs($onlinetxt,"$userip|$time\n");
  $usersonline = $usersonline + 1;
}
fclose ($onlinetxt);

//###################### CALCULATE HIT COUNTER #########################

$stats = file("./stats.txt");
$stats = explode("|",$stats[0]);
$unique_today = $stats[0]+0;
$unique_total = $stats[1]+0;
$old_today = $stats[2];
   
$today = date("Ymd");
if($old_today != $today)
  $unique_today = 0;

if(!isset($_SESSION['counted']) || ($_SESSION['counted'] != 1)){
  $unique_today++;
  $unique_total++;
  $_SESSION['counted']=1;
}

$fp = fopen("./stats.txt","w");
fwrite($fp,$unique_today."|".$unique_total."|".$today);
fclose($fp);

//######################## DISPLAY STATISTICS ##########################

echo "<strong>Users Online</strong>: ".$usersonline." <br />\n".
     "<strong>Uniques Today</strong>: ".$unique_today." <br />\n".
     "<strong>Uniques Total</strong>: ".$unique_total." <br />\n";

?>