public function actionHtmlFilter()
{
$str = "fd'<script><b>fdsafds</b>alert('good')</script>d%#sds/ds\gs<a href='fdsa'>fdas</a>a@fd<b>fdsa<?php echo 'fdsad'; ?>fds</b>sa0";
$p = new CHtmlPurifier();
echo $p->processOutput($str);
/* echo $p->purify($str); */
}