以编程方式更新产品变体Woocommerce

Question

我们如何更新产品版本？

我们有这段代码可以创建产品变体，每次运行我们编写的代码时，它都会创建并再次创建变体。

如何检测产品是否存在，以便我们进行更新。

这是我们使用的代码。谢谢！

public function insert_product_variations ($post_id, $variations, $attribute_count, $tier_variations) {
    
    $product = wc_get_product($product_id);
    
    foreach ($variations as $product_variant) {
    
        $variants = explode(',', $product_variant['name']);

            $variation_post = array(
                            'post_title'  => 'Variantion ' . $product_variant['name'] . ' for #' . $post_id,
                            'post_name'   => 'product-'.$post_id.'-variation-'.$product_variant['name'],
                            'post_status' => 'publish',
                            'post_parent' => $post_id,
                            'post_type'   => 'product_variation',
                            'guid'        => home_url() . '/?product_variation=product-' . $post_id . '-variation-' . $product_variant['name']
                        );
                        
        $variation_post_id = wp_insert_post($variation_post);
        
        echo 'Variantion ' . $product_variant['name'] . ' for #' . $post_id;
            
        // Get an instance of the WC_Product_Variation object
        $variation = new WC_Product_Variation( $variation_id );
            
            
        for ($i = 0; $i < $attribute_count ; $i++) {
        
        $tname=strtolower($tier_variations[$i]['name']);
        
        //Replace Type word    
        $tname = str_replace('type', 'model', $tname);
        
        $name = $tname;   
        
        //Remove Space
        $name = str_replace(' ', '', $name);
            
        $attribute_taxonomy = 'pa_' . strtolower ($name);    

        $attribute_term = get_term_by('name', str_replace('+', 'Plus', $variants[$i]) , $attribute_taxonomy);
        update_post_meta($variation_post_id, 'attribute_' . $attribute_taxonomy , $attribute_term->slug);       
        
        }    
        
        //Adjust Price
        $markup = 50;
        $shopee_price = $product_variant['price'];
        $price = $shopee_price / 100000;
        
        $sale_price  = $price + $markup;
        $reg_price = $price + 100;
        //END - Adjust Price
        
        update_post_meta($variation_post_id, '_sale_price', $sale_price);
        update_post_meta($variation_post_id, '_regular_price', $reg_price);
        update_post_meta($variation_post_id, '_manage_stock', 'yes');
        update_post_meta($variation_post_id, '_stock', $product_variant['stock']);
        
    }
    
}