How does PHP handle multiple requests to the same page simultaneously?

When multiple requests are made to the same page simultaneously in PHP, a common issue is that the requests can interfere with each other and cause unexpected behavior. To handle this, you can use session locking to ensure that only one request can access the session data at a time, preventing data corruption.

session_start();

// Lock the session data to prevent simultaneous access
session_write_close();

// Continue with processing the request
// Your code here