php script to show total users online

emm · Power User Joined: 13 Jul 2004 Posts: 310

This is not a counter script I am looking for. But is there a way to show the total number of visitors online in my website with php? Not just how many people visiting the current page, but everyone online. Something like this forum that shows the number of users online. I want it in php and it would be best if I did not have to use any database.
_________________
“You might say reality is the result of complex negotiations between the observer and the observed. But that is simply a point of view…”
Digital Bangladesh

quantum

You can use something like this:

Code:

<?

$ip = $REMOTE_ADDR;
$time = time();
$minutes = 15;
$found = 0;
$users = 0;
$user = "";

$tmpdata = $DOCUMENT_ROOT."/online/data";

if (!is_file("$tmpdata/online.txt"))
{
$s = fopen("$tmpdata/online.txt","w");
fclose($s);
chmod("$tmpdata/online.txt",0666);
}

$f = fopen("$tmpdata/online.txt","r+");
flock($f,2);

while (!feof($f))
{
$user[] = chop(fgets($f,65536));
}

fseek($f,0,SEEK_SET);
ftruncate($f,0);

foreach ($user as $line)
{
list($savedip,$savedtime) = split("\|",$line);
if ($savedip == $ip) {$savedtime = $time;$found = 1;}
if ($time < $savedtime + ($minutes * 60))
   {
   fputs($f,"$savedip|$savedtime\n");
   $users = $users + 1;
   }
}

if ($found == 0)
{
fputs($f,"$ip|$time\n");
$users = $users + 1;
}

fclose ($f);
print "Visitors Online : <font color=black>$users</font>
";
?>

Save the code as online.php and create a folder called data and make a file named data.txt in it with the text 172.16.0.2|1038236463 . Make a folder on your server like online and put all of the files in it. The file in the data folder online.txt has to have permission of 666. After this is all done where ever you want to have the number of visitors on line appear put in a php include like <? include"/online/online.php";?>.

Let me know if it works for you.
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emm · Power User Joined: 13 Jul 2004 Posts: 310

I have not tried the script yet. I shall let you know after trying the script.
_________________
“You might say reality is the result of complex negotiations between the observer and the observed. But that is simply a point of view…”
Digital Bangladesh