Getting error: Bad Request The CSRF token could not be verified: when CSRF has been enabled in the Yii Framework

Getting error: Bad Request The CSRF token could not be verified: when CSRF has been enabled in the Yii Framework and I’m clicking on a linkButton within a form.

Add  ‘YII_CSRF_TOKEN’ => Yii::app()->request->csrfToken to the params array in the linkButton

Example 

<?php echo CHtml::linkButton('Register', array('submit' => ' ',
                                              'params' => array('reg'=>'new', 'YII_CSRF_TOKEN' => Yii::app()->request->csrfToken ),
                        ));
 
?>