DiffMatchPatch\Diff::prettyHtml PHP Метод

    public function prettyHtml()
    {
        $diffs = $this->getChanges();
        $html = '';
        foreach ($diffs as $change) {
            $op = $change[0];
            $data = $change[1];
            $text = str_replace(array('&', '<', '>', "\n"), array('&amp;', '&lt;', '&gt;', '&para;<br>'), $data);
            if ($op == self::INSERT) {
                $html .= '<ins style="background:#e6ffe6;">' . $text . '</ins>';
            } elseif ($op == self::DELETE) {
                $html .= '<del style="background:#ffe6e6;">' . $text . '</del>';
            } else {
                $html .= '<span>' . $text . '</span>';
            }
        }
        return $html;
    }