PHP: Remove URL Param?

Question

I have a function that I call with ?clear-cart appended to the end of my page; as you can probably guess, this function clears the user\'s cart.

I call it l

Answer 1

Have the page http://test.local/cart link to the page http://test.local/cart?clear-cart, which then redirects the user back to http://test.local/cart.

/cart -> /cart?clear-cart -> /cart

if (isset($_GET['clear-cart'])) {
  // Do some cart clearing...
  // Redirect back
  header('Location: /cart');
  exit;   // Very important, otherwise the script will continue until it finally redirects
}