In this part of the tutorial we will learn how to get all session variable and its values. And we will also see the example related to the session.

• All session variables and its values are maintained by the the super global variable $_SESSION.
• $_SESSION is an associative array. It keeps the session data in key and value form.
• session_start() starts the session.
• After execution of the php file variable names and values gets stored in the session.

Example of PHP List All Session Variables
session1.php
<?php
    session_start();
    $roll=1;
    $name="jack";
    $subject="computer science";
    session_register($roll);
    session_register($name);
    session_register($subject);
?>

session2.php
<?php
    session_start();
    foreach ($_SESSION as $key=>$val)
    echo $key." ".$val;
?>

first run session1.php
then run session2.php

Output

1 jack computer science

Related Tags for PHP list all session variables: