public function __construct($options = null) { HTMLPurifier_Bootstrap::registerAutoLoad(); $config = HTMLPurifier_Config::createDefault(); $config->set('Attr.EnableID', true); $config->set('Attr.IDPrefix', 'MyPrefix_'); $config->set('Cache.SerializerPath', APPLICATION_PATH . '/../cache'); $this->_purifier = new HTMLPurifier($config); }