What is the purpose of using session_start() in PHP?

Using session_start() in PHP is necessary to start a new or resume an existing session. This function initializes a session and allows you to store and retrieve data across multiple pages. Without session_start(), you won't be able to use session variables to maintain user data or track user activity on your website. 

<?php
session_start();

// Your PHP code here
?>

Keywords

session_start PHP session management user authentication security

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