Yii验证码操作

1，在SiteController action()下：

  return array(
               // captcha action renders the CAPTCHA image displayed on the contact page                        
              'captcha'=>
                     array(            
                           'class'=>'CCaptchaAction', 
                           'backColor'=>0xFFFFFF,
                           ),   
                       // page action renders "static" pages stored under 'protected/views/site/pages'                        
                       // They can be accessed via: index.php?r=site/page&view=FileName 
                       'page'=>array('class'=>'CViewAction',),
              ); 

2、
(1)在LoginForm model rules()下添加： 

  //captche class needed
  array('verifyCode', 'captcha','allowEmpty'=>!CCaptcha::checkRequirements()),

 
(2)LoginForm model下添加属性：

        public $verifyCode;

   
3、在ContactForm model rules()下添加：

// verifyCode needs to be entered correctly
array('verifyCode', 'captcha', 'allowEmpty'=>!CCaptcha::checkRequirements()),

 

4、在login view下添加：

labelEx($model,'verifyCode'); ?>
widget('CCaptcha'); ?>
textField($model,'verifyCode'); ?>
error($model,'verifyCode'); ?>