How can the issue of sessions not being transferred between PHP files be resolved when hosting on a free platform like Funpic.de?

When hosting on a free platform like Funpic.de, the issue of sessions not being transferred between PHP files can be resolved by ensuring that session_start() is called at the beginning of each PHP file where session variables are needed. Additionally, setting the session cookie parameters explicitly can help in maintaining session consistency across different files.

// Start the session
session_start();

// Set session cookie parameters
session_set_cookie_params(0, '/', '.yourdomain.com', false, true);

// Access or set session variables as needed
$_SESSION['username'] = 'example_user';