What is the common error message related to PHP sessions and how can it be resolved?

Common error message related to PHP sessions is "Warning: session_start(): Cannot start session when headers already sent". This error occurs when there is whitespace or other output before the session_start() function is called. To resolve this issue, ensure that session_start() function is called before any output is sent to the browser. 

<?php
// Start the session before any output is sent
session_start();

// Rest of your PHP code goes here
?>

Keywords

PHP sessions error message resolution session_start() session_destroy()

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