What is the significance of the Post/Redirect/Get pattern in PHP development, and how can it help address form submission issues?

The Post/Redirect/Get pattern is significant in PHP development as it helps address form resubmission issues that occur when a user refreshes a page after submitting a form, causing duplicate form submissions. By redirecting the user to a different page after form submission, it prevents the resubmission of data when the user refreshes the page.

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