By Ramesh Narayan Jangid

Most PHP applications use sessions to keep track of users and store data that is relevant to them.

By default, PHP uses local files to store session data. That is fine for sites and applications with few simultaneous users.

Read this article to learn more about PHP sessions and how you can improve the way you use PHP sessions to be ready to handle better the situation when your PHP sites or applications start getting many simultaneous users.