Which PHP function or variable will return the value of current session ID?

Explanation: The function session_id() will return the session id for the current session or the empty string (” “) if there is no current session.

Which of the following PHP ini directives defines where session data is stored?

Usually, session data is stored in files. The location of these files is set in the php. ini directive session. save_path .

How can you propagate a session ID in PHP?

There are two methods to propagate a session id:

1. Cookies.
2. URL parameter.

What is session Save_handler?

session. save_handler defines the name of the handler which is used for storing and retrieving data associated with a session. Defaults to files . Note that individual extensions may register their own save_handler s; registered handlers can be obtained on a per-installation basis by referring to phpinfo().

What are session variables in PHP?

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. Session variables are set with the PHP global variable: $_SESSION.

How to start a session in PHP?

Start a PHP Session. 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:

Is it possible to set session variables with a single number?

Session variables with a single number will not work, however “1a” will work, as will “a1” and even a just single letter, for example “a” will also work. I wrote a little page for controlling/manipulating the session.

How long do session variables last in HTML?

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.