woocommerce_api_index │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_api_index', 'wp_kama_woocommerce_api_index_filter' );

/**
 * Function for `woocommerce_api_index` filter-hook.
 * 
 * @param  $available 
 *
 * @return 
 */
function wp_kama_woocommerce_api_index_filter( $available ){

	// filter...
	return $available;
}

$available

-

Where the hook is called

return apply_filters( 'woocommerce_api_index', $available );

return apply_filters( 'woocommerce_api_index', $available );

return apply_filters( 'woocommerce_api_index', $available );

Where the hook is used in WooCommerce