How do you start a session in PHP?

A session is started with the session_start () function. Session variables are set with the PHP global variable: $_SESSION. Now, let’s create a new page called “demo_session1.php”. In this page, we start a new PHP session and set some session variables: Example.

When does the session variable end in PHP?

By default, session variables last until the user closes the browser. So; Session variables hold information about one single user, and are available to all pages in one application. Tip: If you need a permanent storage, you may want to store the data in a database. A session is started with the session_start () function.

How to destroy a session completely in PHP?

However, to destroy a session completely, simply call the session_destroy () function. This function does not need any argument and a single call destroys all the session data.

How is a user identified in a PHP session?

You can solve both of these issues by using the PHP session. A PHP session stores data on the server rather than user’s computer. In a session based environment, every user is identified through a unique number called session identifier or SID.

Is it safe to Time Out PHP sessions?

EDIT: If you are timing sessions out due to security concern (instead of convenience,) use the accepted answer, as the comments below show, this is controlled by the client and thus not secure. I never thought of this as a security measure.

How does the timeout property in ASP work?

The Timeout property sets or returns the timeout period for the Session object for this application, in minutes. If the user does not refresh or request a page within the timeout period, the session will end. Session.Timeout[=nMinutes]

When does PHP create new session with each reload?

When this script is executed, in every reload new session is created. But only the one of those sessions has any data inside it, and is used by application. Output in browser is always same: 87412d5882jr85gh5mkasmngg7, which is id in browser’s cookie and session id in /tmp that has data populated to it.