Hook

class KompresHalaman {
    function compress(){
         $CI =& get_instance();
         $buffer = $CI->output->get_output();

         $search = array(
            '/\>[^\S ]+/s',
            '/[^\S ]+\#s');

         $replace = array(
            '>',
            '<',
            '\\1',
            "//<![CDATA[\n".'\1'."\n//]]>");

         $buffer = preg_replace($search, $replace, $buffer);
         $CI->output->set_output($buffer);
         $CI->output->_display();
    }
}