title: Change Add to cart button text for specific products in Woocommerce
body: <p>In woocommerce I have been able to change all the "Add to cart" buttons text to "+", using the code below: </p>
  
  <pre><code>add_filter('woocommerce_product_add_to_cart_text', 
  'wh_archive_custom_cart_button_text');   // 2.1 +
  
  function wh_archive_custom_cart_button_text()
  {
      return __('+', 'woocommerce');
  }
  </code></pre>
  
  <p>But now I would like to change the button text for specific products to <em>(lowercase)</em> "add to cart".</p>
  
  <p>Some help is appreciated.</p>