Why is <?php session_start() ?> necessary in PHP scripts?

<?php session_start() ?> is necessary in PHP scripts in order to start a session and enable the use of session variables. Sessions allow you to store user data across multiple pages on a website, providing a way to track user activity and personalize their experience. By starting a session with session_start(), you can create, read, update, and delete session variables as needed throughout your PHP script. 

&lt;?php 
session_start();
// Your PHP code here
?&gt;

Keywords

PHP session_start() session management cookies user authentication

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