How can including files with session_start() affect the effectiveness of session_destroy() in PHP?

When including files with session_start(), it can potentially create conflicts with session_destroy() because session_start() initializes a session and may recreate it even after session_destroy() is called. To solve this issue, you can use session_write_close() before including any files that use session data. This function closes the current session and ensures that no session data is written or accessed after it is called.

<?php
session_start();
// Perform operations with session data

session_write_close(); // Close the session to prevent conflicts

// Include files that may use session data

session_start(); // Start the session again if needed
?>