How can I create file inside folder

How can I do?

If I make it with @mkdir, it's just like this.

PluginData\PluginName\Example.yml

So I want to make it like this.

PluginData\PluginName\Some Folder\Example.yml

And additionally, can I create folders or files in any location? For example, a wallpaper or a download folder.

If I can't do that, what are the limitations of creating folders or files?

 

Try to use:

PHP:

@mkdir($this->getDataFolder()."FolderName");

 

You can, however it is not recommended.