Zend_Form无线电元素

不确定这是否是最佳方式,但它对我有用:

$questionValid = new Zend_Validate_InArray(array('Yes'));
$questionValid->setMessage('Yes is required!');

$question = new Zend_Form_Element_Radio('question');
$question->setRequired(true)
    ->setLabel('Are you sure?')
    ->setMultiOptions(array('Yes'=>'Yes', 'No'=>'No'))
    ->addValidator($questionValid);