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Title : Number of Online Users By IP (With no cookies).
Categories : PHP, Filesystem Click here to Update Your Picture
Joshy Jacob
Date : Aug 23rd 2006
Grade : 5 of 5 (graded 1 times)
Viewed : 3053
File : 4486.zip
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Search : More code by Joshy Jacob
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Tools : My Examples List

 
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This script can be used to show the number of users online on the site.

Working examples can be seen in the file 'test.php' within the attached zip file.

<?php

// File to save the ip addresses
$UO_Log = 'ip.txt';
// Duration in minutes for which a user is considered online
$UO_OnlineTime = 5;
// Message to be shown


/*=========== No need to edit beyond this ===========*/
$UO_Message = empty($UO_Message) ? 'Users Online - %d' : $UO_Message;
$UO_CurrentIp    = $_SERVER['REMOTE_ADDR'];
$UO_CurrentTime  = time();

$UO_RecordsCount = 1;
$UO_NewRecord    = '';
$UO_OnlineTime   *= 60;
$UO_Records = file($UO_Log);
foreach (
$UO_Records as $UO_Record){
    list(
$UO_Ip, $UO_Time) = explode('|', $UO_Record);
    if((
$UO_Time > ($UO_CurrentTime - $UO_OnlineTime)) && ($UO_Ip != $UO_CurrentIp)){
       
$UO_RecordsCount++;
       
$UO_NewRecord .= $UO_Record;
    }
}
$UO_NewRecord .= "$UO_CurrentIp|$UO_CurrentTime\n";
$UO_Handle = fopen($UO_Log, 'w');
fwrite($UO_Handle, $UO_NewRecord);
fclose($UO_Handle);

printf($UO_Message, $UO_RecordsCount);
?>



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