private function insertOrReplaceTag($content, $search, $replace)
    {
        $newContent =  null;

        $regexSearch = "/(\<$search\>\<\!\[CDATA\[([0-9.])+\]\]\>\<\/$search\>)/";
        if(preg_match($regexSearch, $content)) {
            $newContent = preg_replace($regexSearch, $replace, $content);
        }
        else {
            $newContent = $content . $replace;

        }

        return $newContent;
    }