woocommerce_checkout_posted_data │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_checkout_posted_data', 'wp_kama_woocommerce_checkout_posted_data_filter' );

/**
 * Function for `woocommerce_checkout_posted_data` filter-hook.
 * 
 * @param  $data 
 *
 * @return 
 */
function wp_kama_woocommerce_checkout_posted_data_filter( $data ){

	// filter...
	return $data;
}

$data

-

Where the hook is called

return apply_filters( 'woocommerce_checkout_posted_data', $data );

Where the hook is used in WooCommerce