Starting a Session
To start a session use session_start() and to register a variable
in this session use the $_SESSION array.
<?php
session_start();
$_SESSION['my_var'] = 'Hello World';
?>
If register_globals is enabled then your session variables will be
available as normal variables on subsequent pages. Otherwise they
will only be in the $_SESSION array.
<?php
session_start();
echo $_SESSION['my_var'];
?>
