Php Id 1 Shopping

$id = (int)$_GET['id']; // Converts "1; DROP TABLE" into simply 1 Use code with caution.

return $total_cost;

If you are building an online store or maintaining an existing PHP platform, relying on raw, unfiltered query parameters is a major hazard. Modern web development addresses these flaws through three core strategies: 1. Shift to Clean, SEO-Friendly URLs (Routing) php id 1 shopping

: The instruction. It tells the engine, "Hey, go find the details for Item #1 in the database".

: The key identifier. In data structures, this maps to the unique primary key assigned to an entry within a database index. $id = (int)$_GET['id']; // Converts "1; DROP TABLE"

At first glance, this works perfectly. The user clicks "View Item," and the page loads. But what happens if the user changes the URL from id=1 to id=2 ?

This code provides a basic shopping cart system with the following features: Shift to Clean, SEO-Friendly URLs (Routing) : The

: A user is much more likely to trust and click on a link that explicitly names the product rather than a string of code and numbers.

$stmt = $pdo->prepare('SELECT * FROM products WHERE id = :id'); $stmt->execute(['id' => $id]); $product = $stmt->fetch(); Use code with caution.

Search engines like Google prefer "clean" or "pretty" URLs over dynamic query strings. A URL like ://example.com ranks significantly higher than ://example.com . Clean URLs provide search crawlers with keyword context, helping them understand exactly what the page is selling. Low Click-Through Rates (CTR)