woocommerce_product_description_heading │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_product_description_heading', 'wp_kama_woocommerce_product_description_heading_filter' );

/**
 * Function for `woocommerce_product_description_heading` filter-hook.
 * 
 * @param  $__ 
 *
 * @return 
 */
function wp_kama_woocommerce_product_description_heading_filter( $__ ){

	// filter...
	return $__;
}

$__

-

Where the hook is called

$heading = apply_filters( 'woocommerce_product_description_heading', __( 'Description', 'woocommerce' ) );

Where the hook is used in WooCommerce