What are the best practices for handling multiple EventSource requests in PHP scripts to avoid conflicts?

When handling multiple EventSource requests in PHP scripts, it's important to ensure that each request is processed independently to avoid conflicts. One way to achieve this is by using session locking to prevent concurrent access to session data. By locking the session during each request, you can ensure that data is read and written atomically, preventing conflicts between requests.

session_start();

if (session_status() === PHP_SESSION_ACTIVE) {
    session_write_close(); // close the session to release the lock
}

// process EventSource request here

session_start(); // reopen the session for the next request