![]() The HTTP protocol is a stateless protocol, which means that there's no way a server can remember a specific user between multiple requests. Website? To see why sessions are necessary, we have to go back and see how the HTTP protocol is designed to work. Are you wondering why sessions are needed for a What Is a Session in PHP?Ī session is a mechanism to persist information across different web pages to identify users as they navigate a site or app. You can also learn about session variables in my post on using cookies in PHP. Typically used in applications that need to store information about a user for a single site. Session variables are typically used in applications that need to keep track of a user's activity. Cookies are a way to store data about a user on the user's computer. Not sure if you need cookies or session variables? Session variables are a way to store data about a user in a database and retrieve it later. You'll learn how to create and destroy sessions, and how to change session variables. ![]() Then we'll look at a few code snippets thatĭemonstrate how to work with sessions. ![]() We'll start with an explanation of how sessions work and how they are related to cookies. How to Implement a Database Session Handler.How to Modify and Delete Session Variables.
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