woocommerce_cart_emptied │ action-hook │ WC 1.0

Usage

add_action( 'woocommerce_cart_emptied', 'wp_kama_woocommerce_cart_emptied_action' );

/**
 * Function for `woocommerce_cart_emptied` action-hook.
 * 
 * @param  $clear_persistent_cart 
 *
 * @return void
 */
function wp_kama_woocommerce_cart_emptied_action( $clear_persistent_cart ){

	// action...
}

$clear_persistent_cart

-

Where the hook is called

do_action( 'woocommerce_cart_emptied', $clear_persistent_cart );

Where the hook is used in WooCommerce

add_action( 'woocommerce_cart_emptied', array( $this, 'destroy_cart_session' ) );