<?php echo "hi php"; var_dump($_POST); var_dump($_GET); include 'product.php'; include 'categories.php'; $categs = new categories(); $categories = $categs->searchByName($_GET['catName']); if (empty($categories)) { echo true; } else { echo "duplicated"; } $product = new Products(); $prodct = $product->searchByName($_GET['product']); if (empty($prodct)) { echo true; } else { echo "duplicated"; }