thinkphp upload怎么用

thinkphp upload的使用步骤：

1. 在控制器中引入Upload类：use thinkfacadeRequest; use thinkfacadeFilesystem; use thinkfacadeValidate; use thinkfacadeConfig; use thinkfacadeDb; use thinkfacadeEnv; use thinkfacadeLog; use thinkfacadeSession; use thinkfacadeView; use thinkfacadeCache; use thinkfacadeRoute; use thinkfacadeUpload;

2. 创建Upload对象：$file = request()->file("image");

3. 判断文件是否上传成功：if (!$file) { return "请选择文件"; }

4. 验证文件格式和大小是否符合要求：$validate = Validate::rule(["size" => 2048000, "ext" => "jpg,png,gif"])->check(["size" => $file->getSize(), "ext" => $file->getOriginalExtension()]); if (!$validate) { return "文件格式或大小不符合要求"; }

5. 保存文件到指定目录：$savePath = Config::get("upload_path") . "/" . date("Ymd"); $info = $file->validate(["size" => 2048000, "ext" => "jpg,png,gif"])->move($savePath); if (!$info) { return $file->getError(); }

6. 获取文件的保存路径并返回：$filename = $info->getSaveName(); $filePath = "/" . $savePath . "/" . $filename; return $filePath;