BlogHelper::getHtmlById PHP Method

    public function getHtmlById($post, $id)
    {
        $content = $post['BlogPost']['content'] . $post['BlogPost']['detail'];
        $values = array();
        $pattern = '/<([^\\s]+)\\s[^>]*?id="' . $id . '"[^>]*>(.*?)<\\/\\1>/is';
        if (preg_match($pattern, $content, $matches)) {
            return $matches[2];
        } else {
            return '';
        }
    }