WordPress Functions
Global PHP functions of the WordPress core. get_posts, wp_enqueue_script, and thousands more with argument descriptions.
WordPress Classes
WordPress OOP core: WP_Query, WP_User, WP_Error. Description of methods, properties, and initialization methods.
WordPress Hooks (Actions)
do_action events allowing you to inject your code into the loading process, post saving, or page rendering.
WordPress Filters
apply_filters events for modifying data on the fly before saving it to the DB or outputting to the screen.
WooCommerce Functions
WooCommerce online store functions. Work with the cart, orders, products, and prices.
WooCommerce Classes
WooCommerce OOP architecture: WC_Product, WC_Order, WC_Cart, and other classes.
WooCommerce Hooks (Actions)
do_action events in WooCommerce. Customization of checkout, cart, product pages, and orders.
WooCommerce Filters
apply_filters filters for changing WooCommerce behavior, settings, prices, and templates.