pQuery\DomNode::addClass PHP Метод

    function addClass($className)
    {
        if (!is_array($className)) {
            $className = array($className);
        }
        $class = $this->class;
        foreach ($className as $c) {
            if (!(preg_match('`\\b' . preg_quote($c) . '\\b`si', $class) > 0)) {
                $class .= ' ' . $c;
            }
        }
        $this->class = trim($class);
    }