Configuring Redis to be used as a PHP session Handler: (https://www.cloudways.com/blog/setup-redis-as-session-handler-php/ )

index.php

<?php

ini_set('session.save_handler', 'redis');

ini_set('session.save_path', "tcp://localhost:6379");

//echo ini_get('session.save_path');

session_start();

$count = isset($_SESSION['count']) ? $_SESSION['count'] : 1;

echo $count;

$_SESSION['count'] = ++$count;

?>