我正在尝试使用运输成本下拉的动态值创建一个动态多选选择，
数组进入并创建select输入fine，但忽略了受保护的值。这对我来说毫无意义。我甚至尝试使用公共getter来访问受保护的值，但它仍然是空白的。
protected $_regular = 4.95;
protected $_oneDay = 14.95;
protected $_twoDay = 14.95;
public function getShippingOpts(){
return array(
"regular"=>"Regular 5-7 Business Days $".$this->_regular,
"two-day"=>"Express 3-4 Business Days $".$this->_twoDay,
"one-day"=>"Overnight 1-2 Business Days $".$this->_oneDay
);
}
这是放置在表单的init函数中的$form代码：
$shType = new Zend_Form_Element_Radio("sh_type");
$shType->setLabel("Please select a type of shipping")
->setAttrib('class', 'co-shipping-type')
->setRequired(true)
->setMultiOptions(ORed_Shipping_LabelFactory::getShippingOpts());
$shTypeToSubmit = new Zend_Form_Element_Hidden('speed');
$shipping2->addElements(array($shType, $shTypeToSubmit));
由于您没有创建ORed_Shipping_LabelFactory的实例，因此您不能使用实例变量（以$this开头的变量是实例变量）。
static $_regular = 4.95;
static $_oneDay = 14.95;
static $_twoDay = 14.95;
public static function getShippingOpts(){
return array(
"regular"=>"Regular 5-7 Business Days $".self::$_regular,
"two-day"=>"Express 3-4 Business Days $". self::$_twoDay,
"one-day"=>"Overnight 1-2 Business Days $". self::$_oneDay
);
}