Join us on Facebook!

PHP: Simple Online Users counter

by admin 3110 views 0 Comments and 0 Rections

Today I am going to show you how you can create a simple online users counter through php and mysql. For this tutorial you should have some basic knowledge about php and mysql queries.

First of all, you will need a database and a table where we will store information about the online visitors. The table that we will use should have the following 3 fields:


  1. id as autonumbe, primary field

  2. ip - varchar(25) to hold the ip address of the online visitors, and

  3. timeout - datetime where we will store the stay time of visitors

Name the table as "tblonlineusers", or if you find it difficult to create table, I've included the sql to create the required table making the task easier for you.

Now, you just need to use the following code, which has instructions in every line:

//Change the below parameters according to your server's config

$host = "localhost";

$username = "root";

$password = "password";

$con = mysql_connect($host, $username, $password); //Connect to MySql server

if (!$con)


die('Could not connect: ' . mysql_error());


$db = "onlineuserdb"; //Database Name

mysql_select_db($db, $con) or die(mysql_error()); //Select the provided db

//Procedures to add/update online visitors:

$timeout = date("Y-m-d H:i:s" ,time() + (5 * 60)); //The amount of time to keep the visitor online (5 represents 5 minutes, you can change it)

$ip = $_SERVER['REMOTE_ADDR']; //Retrieving ip of the current visitor

$query = "select * from tblonlineusers where ip='$ip'"; //This query will check if this visitor is already in db or not

$result = mysql_query($query) or die("Error 1: " . mysql_error());

if(mysql_num_rows($result) > 0 ) //If yes, then visitor is has opened another page


$query = "update tblonlineusers set timeout='$timeout' where ip='$ip'"; //Now just update visitor's record by updating his timeout




$query = "insert into tblonlineusers(ip,timeout) values('$ip', '$timeout')"; //If no record present then insert it into db


mysql_query($query) or die("Error 2: " . mysql_error()); //Execute the query

mysql_query("delete from tblonlineusers where timeout < '" . date("Y-m-d H:i:s" ,time()) . "'" ) or die("Error 3: " . mysql_error()) ; //Now delete those visitors whos timeout has elapsed

//Displaying online users:

$result = mysql_query("select count(id) from tblonlineusers");

$row = mysql_fetch_row($result);

$onlineUsers = $row[0];

echo($onlineUsers . " Users Online!"); //You can customize it according to your requirement


View the demo

More Posts in "Tutorials"


blog comments powered by Disqus

Feed Subscription

Get daily inboxed with latest news, reviews and tutorials. Signup now it's free :)

Planetmaks on Twitter

Follow PlanetMaks on Facebook

Recent Comments

Powered by Disqus


32Bit 64Bit 7 Admin Tool Admin Tools Admin-Tool Admin-Tools AdminTool Adobe Adware All-in-One Anti-Spyware Anti-Virus Apple Backup Tools Browser Browsers Changing Default Directory Codec Data Recovery Download Manager Downloads Drive Utilities Driver Drivers Firefox Flash Freeware Google Graphics Internet Tool Internet-Tool Messaging Microsoft Microsoft Tool Micsellonous Monitoring Multimedia Networking News NVidia Office Tool Office-Tool PC Suite Press Release Registry Samsung Security Shareware Software Softwares Tutorials Vista Windows Windows 7 Windows 8