如何使用新文件名制作上传文件？ [英] How do I can make upload file with new filename?

问题描述

您好。我有一个问题，所以我想在用户添加新图片时做一些事情，然后他的名字会变成一串唯一的数字。通过编写我想在服务器上写的代码说（用户上传photo.jpg并在服务器上写入），现在我想这样做。 （用户上传image.jpg，服务器重命名为102399_2.jpg（类似的东西）并将其保存在目录和数据库中）。

 

使用此代码我使用

  $ target_dir  =    photos /; 
  $ target_file  =  $ target_dir 。 basename（$ _ FILES [  fileToUpload] [  name]）; 
  $ uploadOk  =  1 ; 
  $ imageFileType  = pathinfo（$ target_file，PATHINFO_EXTENSION）; 

  if （move_uploaded_file（$ _ FILES [  fileToUpload ] [  tmp_name]，$ target_file））

我尝试过：



随着变化

  $ target_file  

解决方案

target_dir = photos /;

target_file =

< blockquote> target_dir 。基名（

Hello. I have a problem and so I want to do something when the user adds a new picture, then his name will change to a string of unique numbers. By writing code I wanted to write on the server say (the user uploads a photo.jpg and it writes on the server) and now I would like to do so. (The user uploads the image.jpg, the server is renamed to 102399_2.jpg (something like that) and saves it in the directory and in the database).
 
With this code I used

$target_dir = "photos/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);

if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file))

What I have tried:

With change

$target_file

解决方案

target_dir = "photos/";

target_file =

target_dir . basename(

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