alemarengo

add_filter( 'woocommerce_product_tabs', 'woo_new_product_tab' );
function woo_new_product_tab( $tabs ) {
	
global $post;

$tabs['description']['priority'] = 25;
$tabs['reviews']['priority'] = 55;
$tabs['test_tab'] = array(
	'title' 	=> __( 'test_tab', 'woocommerce' ),
	'priority' 	=> 50,

alemarengo

<?php
/**
 * Plugin Name: WooCommerce - List Products by Tags
 * Plugin URI: http://www.remicorson.com/list-woocommerce-products-by-tags/
 * Description: List WooCommerce products by tags using a shortcode, ex: [woo_products_by_tags tags="shoes,socks"]
 * Version: 1.0
 * Author: Remi Corson
 * Author URI: http://remicorson.com
 * Requires at least: 3.5
 * Tested up to: 3.5

alemarengo

<?php

add_filter( 'woocommerce_get_price_html', 'growdev_custom_price_message', 30, 2 );
/**
 * Add string to
 *
 * @param $price    HTML string
 * @param $product WC_Product object
 * @return string
 */