How do PHP sessions work and how do they track users without passing parameters in the script?

PHP sessions work by generating a unique session ID for each user when they first visit a website. This session ID is stored as a cookie on the user's browser and is used to track the user as they navigate through the website. The session ID is passed automatically in the background without the need to pass parameters in the script. 

<?php
// Start the session
session_start();

// Access the session ID
$session_id = session_id();

// Use the session ID to track the user
echo "Session ID: " . $session_id;
?>

Keywords

PHP sessions session tracking session management session variables session handling

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