What role does the session_start() function play in managing sessions in PHP?

The session_start() function is essential in managing sessions in PHP as it initializes a new session or resumes an existing one. It must be called before any output is sent to the browser to ensure proper session management. Without session_start(), session variables cannot be accessed or set. 

<?php
session_start();

// Your PHP code here
?>

Keywords

session_start managing sessions PHP function sessions

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