"warning", // Show a warning "_pattern" => "/[a-zA-Z0-9]*/" // Only Accept alphanumeric characters ); $meta['header'] = array('string', "_caution" => "warning", // Show a warning "_pattern" => "/[a-zA-Z0-9]*/" // Only Accept alphanumeric characters ); // Do we use CDN when posible $meta['cdn'] = array('onoff'); ?>