What are common challenges beginners face when working with PHP sessions?

One common challenge beginners face when working with PHP sessions is not starting the session before using any session variables. To solve this issue, simply add `session_start()` at the beginning of your PHP script to start the session. 

<?php
session_start();

// Your PHP code here
?>

Keywords

session_start session variables session hijacking session timeout session_regenerate_id

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