: The specific value being requested—in this case, the very first database entry.
<h2>Your Cart</h2> <a href="cart.php">View Cart (<?php echo isset($_SESSION['cart']) ? array_sum($_SESSION['cart']) : 0; ?> items)</a> php id 1 shopping top
While php?id=1 remains highly functional for backend logic, modern web development has largely moved toward , also known as "slugs" or "clean URLs." Instead of a user or a search engine seeing: ://example.com : The specific value being requested—in this case,