How can one display a list of logged-in users in a window using PHP?

To display a list of logged-in users in a window using PHP, you can store the logged-in users in a session variable and then retrieve and display this information in a window. You can create a script that updates the list of logged-in users whenever a user logs in or logs out. 

<?php
session_start();

// Add user to list of logged-in users
if(isset($_SESSION['logged_in_users'])){
    $_SESSION['logged_in_users'][] = $_SESSION['username'];
} else {
    $_SESSION['logged_in_users'] = array($_SESSION['username']);
}

// Display list of logged-in users
echo '<div style="border: 1px solid black; padding: 10px;">';
echo '<h3>Logged-in Users:</h3>';
echo '<ul>';
foreach($_SESSION['logged_in_users'] as $user){
    echo '<li>'.$user.'</li>';
}
echo '</ul>';
echo '</div>';
?>

Keywords

PHP logged-in users display window list

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