private function saveRemote() {$imgUrl = htmlspecialchars($this->fileField);$imgUrl = str_replace("&", "&", $imgUrl);// 增加对微信图片的判断if (strpos($imgUrl, 'https://mmbiz.qpic.cn') !== false) {$newstr = strtolower(strrchr($imgUrl, '?'));$imgUrl = str_replace($newstr, '.jpg', $imgUrl);}">