我正在开发一种新的送货方式,根据包装重量,数量和客户邮政编码计算费率……
我在calculate_shipping函数上检索购物车信息没有问题,但是当我尝试从客户检索邮政编码时,它似乎返回一个空值.
如何在运行时检索此信息以计算最终成本？

public function calculate_shipping( $package ) { 
    GLOBAL $woocommerce; 
    $items = $woocommerce->cart->get_cart(); 
    $cliente = $woocommerce->customer;  
    $peso = $woocommerce->cart->cart_contents_weight; 
    $customer_postcode = $woocommerce->customer->get_shipping_postcode(); 
}

解决了：

$customer_postcode = get_user_meta(get_current_user_id(),’shipping_postcode’,true);

解决方法:

// add this in your calculate_shipping function
public function calculate_shipping( $package ) {
     $postal_code = $package[ 'destination' ][ 'postcode' ] );
}