How can one prevent a PHP session from expiring during a long data input process?

During a long data input process, PHP sessions can expire if there is no activity for a certain amount of time. To prevent this, you can use the session_write_close() function to write session data to the server and then reopen the session to continue the data input process.

// Start the session
session_start();

// Perform data input process

// Write session data to the server
session_write_close();

// Reopen the session to continue data input
session_start();