Create a free product in WooCommerce:
Programmatically add free product to cart
Add this snippet ( update product id and product ids to exclude ):
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| /** | |
| * @snippet Add Complimentary Product To Cart Programmatically - WooCommerce | |
| * @author Prosvit Design Team | |
| * @compatible WooCommerce 4.0.1 | |
| * @website http://prosvit.design | |
| */ | |
| add_filter('template_redirect', 'prosvit_add_complimentary_product_to_cart'); | |
| function prosvit_add_complimentary_product_to_cart() | |
| { | |
| // if admin - do nothing | |
| if (is_admin()) return; | |
| // if cart empty - do nothing | |
| if (sizeof(WC()->cart->get_cart()) == 0) return; | |
| $product_id = 15; // replace with your own complimentary product id | |
| $product_ids_to_exclude = array(32); // Product ids to exclude - complimentary product will not be added with these products | |
| $found = false; | |
| $exclude = false; | |
| // check if complimentary product already in cart and there are no exclusion products | |
| foreach (WC()->cart->get_cart() as $cart_item_key => $values) { | |
| $_product = $values['data']; | |
| if (in_array($_product->get_id(), $product_ids_to_exclude)) { | |
| $exclude = true; | |
| } | |
| if ($_product->get_id() == $product_id) { | |
| $product_id_cart_item_key = $cart_item_key; | |
| $found = true; | |
| } | |
| } | |
| // if complimentary product not found and there are no exclusions, add complimentary product | |
| if (!$found && !$exclude) { | |
| WC()->cart->add_to_cart($product_id); | |
| wc_print_notice('Complimentary Product was added to the Cart!', 'notice'); | |
| } | |
| // check for rough edges - only complimentry product in cart, clear cart | |
| if (sizeof(WC()->cart->get_cart()) == 1 && $found) { | |
| WC()->cart->empty_cart(); | |
| } | |
| // check for rough edges - if exclusion product was added after complimentry product to cart, remove complimentary product | |
| if ($found && $exclude) { | |
| WC()->cart->set_quantity($product_id_cart_item_key, 0); | |
| } | |
| } |
Does this snippet (still) work?
Please let us know in the comments if everything worked as expected. We would be happy to revise the snippet if you report otherwise (please provide screenshots).
