PHP User online tutorial

This tutorial show you php script that count how many users are active on your site.


In this tutorial, create 1 PHP file for testing this code.
1. user_online.php

1. Create table "user_online" in mysql in database "test".
2. Create file user_online.php.

STEP1: Create table "user_online"

CREATE TABLE `user_online` (
`session` char(100) NOT NULL default '',
`time` int(11) NOT NULL default '0'

STEP2: Create file - user_online.php

############### Code


$time_check=$time-600; //SET TIME 10 Minute

$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="test"; // Database name
$tbl_name="user_online"; // Table name

// Connect to server and select databse
mysql_connect("$host", "$username", "$password")or die("cannot connect to server");
mysql_select_db("$db_name")or die("cannot select DB");

$sql="SELECT * FROM $tbl_name WHERE session='$session'";



$sql1="INSERT INTO $tbl_name(session, time)VALUES('$session', '$time')";

else {
"$sql2=UPDATE $tbl_name SET time='$time' WHERE session = '$session'";

$sql3="SELECT * FROM $tbl_name";


echo "User online : $count_user_online ";

// if over 10 minute, delete session
$sql4="DELETE FROM $tbl_name WHERE time<$time_check";

// Open multiple browser page for result

// Close connection


Similar Post

PHP Pagination

This is a guide how to create a pagination in PHP like pagination style

Creating simple PHP contact form

When you need user send feedback to your email you can usecontact form. In this tutorial you'll learn how to create contact form with php script.