dedecms 添加栏目图片

// 获取当前栏目ID
$catid = isset($catid) ? intval($catid) : 0;

// 检查栏目是否存在
if ($catid > 0) {
    // 获取栏目信息
    $category = $dsql->GetOne("SELECT * FROM `dede_arctype` WHERE id='$catid'");

    // 检查栏目是否有图片字段
    if (isset($category['imagefield'])) {
        // 上传图片
        $upfiles = $_FILES['image'];
        if (!empty($upfiles['name'])) {
            $filetype = $upfiles['type'];
            $filesize = $upfiles['size'];
            $tmpfile = $upfiles['tmp_name'];
            $filename = $upfiles['name'];

            // 检查文件类型和大小
            if (in_array($filetype, array('image/jpeg', 'image/png', 'image/gif')) && $filesize < 2048000) {
                // 保存图片到服务器
                $savepath = DEDEHOME . '/uploads/images/' . date('Ymd') . '/';
                if (!file_exists($savepath)) {
                    mkdir($savepath, 0777, true);
                }
                $savefilename = $savepath . md5($filename) . '.' . substr(strrchr($filename, '.'), 1);
                if (move_uploaded_file($tmpfile, $savefilename)) {
                    // 更新栏目图片
                    $dsql->ExecuteNoneQuery("UPDATE `dede_arctype` SET `$category[imagefield]`='$savefilename' WHERE id='$catid'");
                }
            }
        }
    }
}