What is the best practice for updating session variables in PHP after a user changes their information in a form?

When a user updates their information in a form, the session variables should be updated to reflect these changes. The best practice for updating session variables in PHP after a user changes their information is to retrieve the updated data from the form submission, validate it, and then update the session variables accordingly. This ensures that the session data stays up to date with the user's information. 

// Retrieve updated data from form submission
$newUsername = $_POST['username'];
$newEmail = $_POST['email'];

// Validate the data if needed

// Update session variables
$_SESSION['username'] = $newUsername;
$_SESSION['email'] = $newEmail;

Keywords

session variables PHP form submission data validation security

Related Questions