In the previous chapters, you learned how to use arrays, one of the most versatile and useful elements in PHP, to store multiple values within a single variable. Let’s now imagine you need to store some information to be used across multiple web pages. You need to store some information on a local computer (client side) or store some information on a server (server side) for just a certain time using the web page. How would you do this? By using sessions and cookies.
The main difference between sessions and cookies is that ...