The component for replacement bad words on ***. It's intended for forms, which can be can be filled by users. Base is complete for russian words especially, but you can complete personal base of words in BadWords.php.
1) In model rules()
"surname" and "name" - it's the names of properties in your model.
array('surname, name', 'filter', 'filter'=>array("BadWords", "replacement")),
2) Like a method
$name = Yii::app()->badWords->replacement($name);
1) Copy this file in /protected/components/
2) Add this component in /protected/config/main.php
'components'=>array( ......... 'badWords' => array( 'class' => 'badWords' ) ......... ),