file_put_contents - failed to open stream: Permission denied

Question

I am trying to write a query to a file for debugging. The file is in database/execute.php. The file I want to write to is database/queries.php.

Answer 1

For anyone using Ubuntu and receiving this error when loading the page locally, but not on a web hosting service,

I just fixed this by opening up nautilus (sudo nautilus) and right click on the file you're trying to open, click properties > Settings > and give read write to 'everyone else'