An Introduction To PHP Sessions

How Do I Change The Value Of A Session Variable?

This is easily achieved by simply declaring the variable again like so. If page1.php sets the value of $_SESSION['foo'] to bar, the value can be changed by resetting it like:

<?php
    $_SESSION['foo'] = 'newbar';
?>

It really is that simple.

• Next: What Should I Do To Destroy A Whole Session?