图像上传脚本在PHP中 [英] image upload script in php

问题描述

我的问题是如何上传特定于已经上传的用户标识的图像？这意味着应该有一些标准，这将表明这些图像属于这个用户。

我在想什么，我可以存储图像与用户的图像名称 - 身份证，但在这种情况下，将这些图像存储评论是困难的。

有没有更好的方法？

解决方案

一个数据库？

如果不是：

设置一个数据库来存储用户，然后创建一个逻辑连接用户：

用户：

  | ---------------------------------- ----- 
 | UserId用户名密码| 
 | --------------------------------------- 
 | 1 Robert 3j9745t3 | 
 | 2 Paul 03945u30 | 
 | --------------------------------------- 
  
 
 $ p 
 $ b $ pre $  -------------------------------------------------- 
 | ImageID UserId Desc ImageHash | 
 | --------------------------------------------- ---- | 
 | 1 1 Some Desc 87ytr8d23yr | 
 | 2 1 Some Desc 5uty4095u40 | 
 | --------------------------------------------- ---- | 
  

然后将图像存储在图像目录中，如 87ytr8d23yr.png ，然后你可以做一个PHP查询就像这样

  $ userid = 1; 
 $ sql =SELECT * FROM WHERE UserId =。 （int）$ userid。 ORDER BY ImageID LIMIT 10; 
 
 if（$！$（$ resource = mysql_query（$ sql）））
 {
 while（$ imageRow = mysql_fetch_object（$ resource））
 { 
 if（file_exists（'imageDir /'。$ imageRow-> ImageHash。'.png'））
 {
 //做任何事情。 
}其他
 {
 //删除行并通知用户由于某种原因图片已被删除。 
 
 
 
 
 
 $ b 
你也只需要做一个评论表，并添加ImageId，当用户评论一个图像只是将图像添加到注释行，以便您可以跟踪它。
In my application a user can create his/her photo album.

My question is how can I upload images specific to that user-id who has uploaded them? This means there should be some criteria that will indicate that these images belong to this user.

What I was thinking that I can store images with the image name of the user-id, but in that case it would be difficult to store comments along with these images. 

Is there any better way?
解决方案
Are you not using a database?

If no:

Set up a database to store the users, then create a logical connection between the iamges and the users.

for instance

Users:
|---------------------------------------
|  UserId       Username      Password |
|---------------------------------------
|     1         Robert        3j9745t3 |
|     2          Paul         03945u30 |
|---------------------------------------
Images:
|--------------------------------------------------
|  ImageID       UserId      Desc       ImageHash |
|-------------------------------------------------|
|     1            1        Some Desc  87ytr8d23yr|
|     2            1        Some Desc  5uty4095u40|
|-------------------------------------------------|
Then store the images on your images directory like 87ytr8d23yr.png and then you can do a php query like so
$userid = 1;
$sql = "SELECT * FROM Images WHERE UserId = " . (int) $userid . " ORDER BY ImageID LIMIT 10";

if(false !== ($resource = mysql_query($sql)))
{
    while($imageRow = mysql_fetch_object($resource))
    {
       if(file_exists('imageDir/' . $imageRow->ImageHash . '.png'))
       {
            //Do whatever.
       }else
       {
           //Delete the row and inform the user that the picture has been deleted for some reason.
       }
    }
}
Also you just have to do a Comments table and add ImageId, and when a user comments on an image just add the image into the comment row so you can trace it.

                        
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