WooCommerce: Edit External Product Image URL

We’ve already seen how to open the External Product “Buy Product” button in a new browser tab – and now it’s time to complete the full picture for External/Affiliate WooCommerce Products: how do we also link the “featured” image to the same external URL?

Our goal is to get the External Product featured image to link to the same “Buy Product” URL

PHP Snippet Part 1: Disable Zoom/Gallery (For External Products)

If we want to link to a URL, we first need to disable the default WooCommerce zoom and lightbox gallery functionalities.

You can use https://businessbloomer.com/woocommerce-disable-zoom-gallery-slider-lightbox-single-product/ for that.

Also, make sure to disable the Product Gallery e.g. that the external product has only 1 featured image.

PHP Snippet Part 2: Link Featured Image to External Product URL @ WooCommerce Single Product Page

/**
 * @snippet       Image to External URL - WooCommerce Single Product
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 3.8
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

add_filter( 'woocommerce_single_product_image_thumbnail_html', 'bbloomer_image_link_external_url', 100, 2 );

function bbloomer_image_link_external_url( $html, $post_thumbnail_id ) {
   global $product;
   if ( ! $product->is_type( 'external' ) ) return $html;
   $url = $product->add_to_cart_url();
   $pattern = "/(?<=href=(\"|'))[^\"']+(?=(\"|'))/";
   $html = preg_replace( $pattern, $url, $html );  
   return $html;
}

Where to add this snippet?

You can place PHP snippets at the bottom of your child theme functions.php file (before "?>" if you have it). CSS, on the other hand, goes in your child theme style.css file. Make sure you know what you are doing when editing such files - if you need more guidance, please take a look at my free video tutorial "Where to Place WooCommerce Customization?"

Does this snippet (still) work?

Please let me know in the comments if everything worked as expected. I would be happy to revise the snippet if you report otherwise (please provide screenshots). I have tested this code with Storefront theme, the WooCommerce version listed above and a WordPress-friendly hosting on PHP 7+.

If you think this code saved you time & money, please join other Business Bloomer supporters and avail of 365 days of WooCommerce benefits. Thank you in advance :)

Need Help with WooCommerce Customization?

Check out these free video tutorials. You can start learning how to customize WooCommerce without unnecessary plugins. Watch me code and learn by example!

  • how-to-edit-woocommerce-with-php-snippets
  • woocommerce-hooks-add_action-list-visual
  • woocommerce-customize-single-product-page-PHP

Rodolfo Melogli

Author, WooCommerce expert and WordCamp speaker, Rodolfo has worked as a WooCommerce freelancer since 2011. His goal is to help entrepreneurs and developers overcome their WooCommerce nightmares. Rodolfo loves travelling, chasing tennis & soccer balls and, of course, wood fired oven pizza.

Questions? Feedback? Support? Leave your Comment Now!
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If you are writing code, please wrap it between: [php]code_here[/php]. Failure to complying with this (as well as going off topic) will result in comment deletion. You should expect a reply in about a week - this is a popular blog but I need to get paid work done first. Please consider joining #BloomerArmada to ask me 1-to-1 WooCommerce questions. Thank you :)

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