dpo15099
2019-06-06 21:20
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已采纳

使用自定义文件名在WordPress上传文件

I'm currently developing a plugin for my page. The goal is to upload a custom profile image from a user page. Now I want to store each image under a pre-defined name. Sadly I've no plan how I can set a custom name for a file during the file upload with the WordPress function wp_upload_bits():

$filename =  $_FILES['file']['name'];

$uploaded_bits = wp_upload_bits(
    $filename,
    null,
    file_get_contents( $_FILES['file']['tmp_name'] )
);

Currently when I upload for example an image with the name yolo.png, the name stays yolo.png.

Now I want to define the new name this way:

$filename = 'profile-image-' . get_current_user_id();

But this can't work because the $_FILES['file']['name'] is the temporarily saved file on my server and this is yolo.png. So do you have any idea how I can reach my goal?

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我正在为我的页面开发一个插件。 目标是从用户页面上传自定义配置文件图像。 现在我想以预定义的名称存储每个图像。 遗憾的是，我没有计划如何在文件上传期间使用WordPress函数 wp_upload_bits（）设置文件的自定义名称： 

  $  filename = $ _FILES ['file'] ['name']; 
 
 $ uploaded_bits = wp_upload_bits（
 $ filename，
 null，
 file_get_contents（$ _FILES ['file'] ['tmp_name']）  
）; 
   
 
 
目前，当我上传例如名称为 yolo.png 的图片时，名称仍为 yolo  .PNG 。   
 
 
现在我想用这种方式定义新名称： 
 
 
  $ filename ='profile-image-'。  get_current_user_id（）; 
   
 
 
但这不起作用，因为 $ _ FILES ['file'] ['name'] 是 暂时保存在我的服务器上的文件，这是 yolo.png 。 所以你知道我如何达到我的目标吗？
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2条回答 默认 最新

  • doutinghou6980 2019-06-06 22:00
    已采纳

    Today I'm not that smart. I need to pass the file type, otherwise the upload can't work...:

    $filename = 'profile-image-' . get_current_user_id() . '.' . substr( strrchr( $_FILES['file']['name'], '.' ), 1 );

    With this part of code I just get the file extension:

    '.' . substr( strrchr( $_FILES['file']['name'], '.' ), 1 );
    已采纳该答案
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  • duandang6352 2019-06-06 22:05

    you can get the file extension also by splitting the string

    $arr = explode('.',$_FILES['file']['name']);
$ext = end($arr);

    you then concatenate the file extension with the name you want.

    you could also try to the function

    move_uploaded_file($_FILES['file']['tmp_name'], 'path/to/folder/'.$filename);
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