PHP SilvercartShoppingCart::get示例

 /**
  * Get the customers shopping cart or create one if it doesn't exist yet.
  * 
  * @return SilvercartShoppingCart
  *
  * @author Sebastian Diel <*****@*****.**>,
  *         Roland Lehmann <*****@*****.**>
  * @since 01.12.2014
  */
 public function getCart()
 {
     $id = $this->owner->ID;
     if (!array_key_exists($id, self::$shoppingCartList)) {
         if ($this->owner->SilvercartShoppingCartID == 0 || !SilvercartShoppingCart::get()->byID($this->owner->SilvercartShoppingCartID)) {
             $cart = new SilvercartShoppingCart();
             $cart->write();
             $this->owner->SilvercartShoppingCartID = $cart->ID;
             $this->owner->write();
         }
         self::$shoppingCartList[$id] = $this->owner->SilvercartShoppingCart();
     }
     return self::$shoppingCartList[$id];
 }