How can PHP session variables be accessed from different parts of a program?

To access PHP session variables from different parts of a program, you can simply start the session using session_start() at the beginning of your PHP files. This will allow you to access and modify session variables throughout your program. 

<?php
session_start();

// Set session variables
$_SESSION['username'] = 'JohnDoe';

// Access session variables
echo $_SESSION['username'];
?>

Keywords

PHP session variables access program scope

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