WooCommerce 教程：購買1件商品將免費產品添加到購物車

您可以在我自己的網站上看到這個。當您將產品添加到特定 SKU 的購物車中時，例如 “成為支持者” 產品時，另一個產品將自動添加到購物車中，並且還可以享受 100％的優惠券折扣。

要查看此操作，請訪問 https://businessbloomer.com/bloomer-armada/#le_body_row_9 並添加到購物車 “支持者” 或 “合作伙伴” 包。當然這裏還有 PHP 代碼片段

PHP 代碼片段：如果 SKU 被添加到 WooCommerce 購物車，則將 “產品禮物” 添加到購物車中

/**  * @snippet       Buy 1, Get Free Product as a Gift - WooCommerce   * @sourcecode    https://businessbloomer.com/?p=21732  * @author        Rodolfo Melogli  * @compatible    WC 2.6.14, WP 4.7.2, PHP 5.5.9  */  function bbloomer_add_gift_if_sku_added_cart( $passed, $product_id, $quantity ) { global $woocommerce;  /* enter array of SKUs that give gift */ $skuswithgift = array('armpar','armsup');  /* enter SKU of product gift */ $giftsku = 'starter';  /* enter name of coupon that gives 100% discount for specific product gift */ $coupon_code = 'xxxyyyzzz';   $product = wc_get_product( $product_id );  if ( $product->get_sku() && in_array( $product->get_sku(), $skuswithgift ) ) { 	WC()->cart->add_to_cart( wc_get_product_id_by_sku($giftsku) ); 	wc_add_notice( __( 'Hey, Supporter! As promised, I added #CustomizeWoo Video Lessons for Free - you will be able to access them in a single place (~ My Courses ~) and get premium support.', 'woocommerce' ), 'success' ); 	$woocommerce->cart->add_discount( $coupon_code ); } return $passed; }  add_filter( 'woocommerce_add_to_cart_validation', 'bbloomer_add_gift_if_sku_added_cart', 10, 3 );