What are the potential consequences of placing session_start() incorrectly in a PHP script?

Placing session_start() incorrectly in a PHP script can lead to errors such as headers already sent or session data not being saved properly. To avoid these issues, session_start() should be called at the beginning of the script before any output is sent to the browser. 

<?php
// Correct placement of session_start()
session_start();

// Rest of the PHP script
?>

Keywords

session_start PHP script potential consequences error session data loss

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