How can I allow a user of my website the capability to upload a photo to a specific folder in WinSCP? I have php code which works on my localhost but I want to upload directly to the WinSCP folder without having to use the WinSCP console.
I suppose you want the user to upload the image via the webpages. Than it is not related to WinSCP at all. You should ask elsewhere.
Note that there's no such thing as WinSCP folder. WinSCP is just a SFTP/FTP client. So you can call the folder SFTP/FTP folder. But for your task, even that is probably irrelevant as the webserver has a direct access to the folder, so you probably won't need SFTP/FTP either.