Automatic Logout after 15 minutes of inactive in php

Question

I want to destroy session if users are not doing any kind of activity on website. At that time after 5 users automatically redirect on index page. How is it possible? Is pos

Answer 1

You may create a cookie for a specific time. For example you could put this on your login page:

<?php
  setcookie('admin', 'abc', time()+50); 
?>

Then in some file part that is included in every page, like 'header.php', you may include:

<?php
  if (!isset($_COOKIE['admin'])) {
  echo "<script> location.href='logout.php'; </script>";   
  }

  setcookie('admin', 'abc', time()+50);
?>

In the above example, after 50s the cookie will die and the user will be logged out automatically.

Answer 2

<form action="index.php" method="post" name="frm"><input name="uname" type="text" placeholder="User Name" />
<input name="pass" type="password" placeholder="Password" />
<input name="submit" type="submit" value="submit" /></form>
In index.php
<?php if(isset($_SESSION['loggedAt'])) { header('dashboard.php'); } 
if(isset($_POST['submit'])) { $name=$_POST['uname']; $pass=$_POST['pass']; 
if($name=="admin" &amp;amp;amp;&amp;amp;amp; $pass=="1234") { 
session_Start(); $_SESSION['username']=$name; $_SESSION['loggedAt']=time(); header('location:dashboard.php?msg=Welcome to dashboard'); } } ?>
in dashboard.php
if(time() - $_SESSION['loggedAt'] > 240) { 
    echo"<script>alert('Your are logged out');</script>";
    unset($_SESSION['username'], $_SESSION['loggedAt']);
    header("Location: " . index.php);
    exit;
} else {
    $_SESSION['loggedAt'] = time();
}