WooCommerce Hooks & Filters

Before writing code

Fetch live docs:

1. Fetch https://developer.wordpress.org/plugins/hooks/ for WordPress Hooks fundamentals
2. Web-search site:developer.woocommerce.com hooks for WooCommerce-specific hooks
3. Web-search woocommerce action filter reference for comprehensive hook listings

How Hooks Work

Actions

Fire at specific points in execution — used for side effects (sending emails, writing logs, rendering HTML):

• do_action( 'hook_name', $arg1, $arg2 ) — fires the action
• add_action( 'hook_name', 'callback', $priority, $accepted_args ) — registers a listener
• remove_action( 'hook_name', 'callback', $priority ) — unregisters a listener
• Lower $priority = runs earlier (default 10)