Learn how to add a file upload field in your WooCommerce registration form. This guide covers the complete process from setup to saving user files.
Learn how to calculate the distance between two locations using the Haversine formula in PHP. Accurate distance measurement with latitude and longitude.
Prevent customers from purchasing the same product multiple times in WooCommerce by using custom hooks and code to check if the product already exists in the cart.
Learn how to apply client-side and server-side validation using jQuery and WordPress to ensure secure and accurate form submissions.
