QuickBooks/QBXML/Object/Customer.php
public function getCreditCardInfo($part = null, $defaults = array())
	{
		if (!is_null($part))
		{
			return $this->get('CreditCardInfo ' . $part);
		}
		
		return $this->getArray('CreditCardInfo *', $defaults);		
	}
public function getCreditCardInfo($part = null, $defaults = array())
	{
		if (!is_null($part))
		{
			return $this->get('CreditCardInfo ' . $part);
		}
		
		return $this->getArray('CreditCardInfo *', $defaults);		
	}
Get credit card information for this customer

@param string $part		If you just want a specific part of the card info, specify it here
@param array $defaults	Defaults for the card data if you want the entire array
@return mixed			If you specify a part, a string part is returned, otherwise an array of card data