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??? ??? ? ?? ??? ?? ??? ??? ???? ???. ?? ?? ?, pa_region. ??? ??? ??? ?? ??? ?? ??? ???? ????. ?? pa_region? ?? ???? ??? ????/???? ?? ????.

wp_set_object_terms 的函數(shù)（文檔）。我嘗試了一些方法，但我認(rèn)為 update_post_meta?? ??? ?? ??? ????? ??? ??? ?????.

? ??? ?? ??? ??? ??? ???? ??? ? ? ????. ??? ?? ??? ???????.

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??? ??? ??? ???? ?? ??? ???? ??? ??? ?????. ??? ??? ???? ????. ? ??? ?? ??? ?? ??? ?? ??? ???? ??? ? ????. ! ??: ??????. ??? pa_region ??? ???? ??? ??? ?? ?? ?????? ????.

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add_action('woocommerce_update_product', 'save_product_region');
function save_product_region( $post )
{
    if( in_array( $post->post_type, array( 'product' ) ) ){

        $test = 'test';
        $product_id = $post->ID;

        $product_attributes = get_post_meta( $product_id ,'_product_attributes', true);
        var_dump($product_attributes);

        // Loop through product attributes
        foreach( $product_attributes as $attribute => $attribute_data ) {
            // Target specif attribute  by its name
            if( 'pa_region' === $attribute_data['name'] ) {
                // Set the new value in the array
                $product_attributes[$attribute]['value'] = $test;
                break; // stop the loop
            }
        }

        update_post_meta( $product_id ,'_product_attributes', $product_attributes );

    }
}