上传图片

 /**
     * @param savepath :例子'./Public/Uploads/ProjectCate/'
     * @param $maxSize :单个文件大小最大限制 单位字节
     * @return array
     *      status:     200 成功,400失败;
     *      message:    提示信息
     *      data:       保存的图片信息
     */
    function upload_img($savepath, $maxSize = 301309)
    {
        $result = array('status' => 400, 'message' => '非法操作!', 'data' => array());
        import('ORG.Net.UploadFile');
        $upload = new UploadFile();
        $upload->maxSize = $maxSize;
        $upload->allowExts = array('jpg', 'jpeg', 'png');
        $upload->allowTypes = array('image/jpeg', 'image/gif', 'image/bmp', 'image/png', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
//    #TODO 限定图片类型
        $upload->savePath = $savepath;// 设置附件上传目录
        $upload->saveRule = 'uniqid';
        if (!$upload->upload()) {// 上传错误提示错误信息
            $result['message'] = $upload->getErrorMsg();
            if ($result['message'] == '上传文件大小不符！') {
                $result['message'] = '图片尺寸需小于300K';
            }
            $result['status'] = 500;
            return $result;
        } else {// 上传成功 获取上传文件信息
            $info = $upload->getUploadFileInfo();
            $result['status'] = 200;
            $result['message'] = '上传成功!';
            $result['data'] = $info;
        }
        return $result;
    }