ThinkPHP implements attachment upload function

This article mainly introduces the attachment upload function of ThinkPHP in detail, and uploads pictures, documents, videos and other files. It has certain reference value. Interested friends can refer to it

Just now Learn how to use the ThinkPHP framework to simply upload attachments (pictures, documents, videos, etc.)

First you need to understand several elements in Upload.class.php (ThinkPHP/Library/Think/Upload, class,php) in the tp framework Functions

1:getError() Get upload error information

2:uploadOne() Upload a single file

3:upload() Upload multiple files

4:rootPath Upload file save root path

The code is as follows

Front desk:

<td>商品图片</td>
<td>
 <input type="file" name="goods_pic" />
</td>

Controller

//处理上传附件图片
  
  //判断是否上传 4:没有上传附件
  if ($_FILES[&#39;goods_pic&#39;][&#39;error&#39;]<4) {
   
   //上传
   $cfg = array(
   &#39;rootPath&#39; => &#39;./Public/uploads/&#39;, //保存根路径
   );
   $upload = new \Think\Upload($cfg); //完全限定名称 实例化对象 

   //uploadOne()方法执行成功后会把附件(在服务器上)的名字和路径等相关信息返回
   $file_info=$upload->uploadOne($_FILES[&#39;goods_pic&#39;]);
   
   //把上传好的附件存到数据库 拼接路径
   //$upload->rootPath通过父类upload.class.php中的__get()方法获取配置中的rootPath
   $_POST[&#39;goods_big_img&#39;]=$upload->rootPath.$file_info[&#39;savepath&#39;].$file_info[&#39;savename&#39;];
  }

If you have other requirements for uploading attachments, you can refer to the upload configuration config parameters in the parent class Upload.class.php to select the required parameters. Just add the above code $ Just rewrite it in cfg=array()!

The parent class upload configuration parameters are as follows (can be rewritten according to your own requirements):

private $config = array(
  'mimes'   => array(), //允许上传的文件MiMe类型
  'maxSize'  => 0, //上传的文件大小限制 (0-不做限制)
  'exts'   => array(), //允许上传的文件后缀
  'autoSub'  => true, //自动子目录保存文件
  'subName'  => array('date', 'Y-m-d'), //子目录创建方式，[0]-函数名，[1]-参数，多个参数使用数组
  'rootPath'  => './Uploads/', //保存根路径
  'savePath'  => '', //保存路径
  'saveName'  => array('uniqid', ''), //上传文件命名规则，[0]-函数名，[1]-参数，多个参数使用数组
  'saveExt'  => '', //文件保存后缀，空则使用原后缀
  'replace'  => false, //存在同名是否覆盖
  'hash'   => true, //是否生成hash编码
  'callback'  => false, //检测文件是否存在回调，如果存在返回文件信息数组
  'driver'  => '', // 文件上传驱动
  'driverConfig' => array(), // 上传驱动配置
 );

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