What are some common pitfalls that PHP beginners may encounter when trying to save data from one PHP script (e.g., warenkorb.php) to another PHP script (e.g., bestellung.php) and how can they be avoided?

One common pitfall is not passing the data correctly between PHP scripts. To avoid this, you can use sessions to store the data and retrieve it in the second script. Another pitfall is not properly sanitizing user input, which can lead to security vulnerabilities. To prevent this, always validate and sanitize user input before saving it to the database. 

// warenkorb.php
session_start();
$_SESSION['cart_items'] = $cart_items;

// bestellung.php
session_start();
$cart_items = $_SESSION['cart_items'];
// process the cart items

Keywords

PHP data transfer session variables form submission include statement

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