I currently have a PI3 on my home network.
With my LAMP apache, I keep the www folder on the USB drive - let's call it "/media/USB32/www". My user id is Tony.
I have added my user-id to group www-data. I can access the www folder for editing from a Windows PC, and I can access it via puTTY.
Apache can show a webpage on it, but Apache cannot write or update a file on it via a HTML Form using Fopen or Fwrite. Pretty sure my PHP is correct.
The error given is fwrite() expects parameter 1 to be resource, boolean given Any idea where my error(s) are?