帝国CMS新闻正文图片自动加alt与title为文章标题

function user_AddImgAlt($mid, $f, $isadd, $isq, $value, $cs) {
    $title = $_POST['title'];
    $htmls = $value;
    $pattern = "/<img[^>]+>/";
    preg_match_all($pattern, $htmls, $matches);
    for ($i = 0; $i <= count($matches[0]); $i++) {
        preg_match_all("/alt=\".+?\"/", $matches[0][$i], $altimg);
        preg_match_all("/title=\".+?\"/", $matches[0][$i], $titleimg);
        $t_alt = count($altimg[0]);
        if ($t_alt == 0) {
            $htmls = str_replace("<img", "<img alt=\"{$title}\"", $htmls);
            $htmls = str_replace("<img", "<img title=\"{$title}\"", $htmls);
        }
    }
    return $htmls;
}