How can PHP developers utilize the header function to redirect users after form submission to prevent data resubmission?

After a form submission, users may accidentally resubmit the data if they refresh the page or use the back button. To prevent this, PHP developers can utilize the header function to redirect users to a different page after the form is successfully submitted. This will ensure that users are not prompted to resubmit the data. 

<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    // Process form data here
    
    // Redirect user to a different page to prevent data resubmission
    header("Location: success.php");
    exit;
}
?>

Keywords

PHP header function redirect form submission data resubmission

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