What role do HTTP headers play in troubleshooting session-related problems in PHP?

HTTP headers play a crucial role in troubleshooting session-related problems in PHP by ensuring that the correct headers are set to manage sessions effectively. One common issue is the session cookie not being set properly, which can lead to session data not persisting between requests. By setting the appropriate headers, such as `session_start()` at the beginning of each PHP script and using `session_regenerate_id()` to regenerate session IDs, developers can ensure that sessions work as intended. 

<?php
// Start the session
session_start();

// Regenerate session ID to prevent session fixation attacks
session_regenerate_id();

// Other PHP code here
?>

Keywords

HTTP headers troubleshooting session PHP problems

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