CODE EXAMPLE FOR PHP

proper permission webserver laravel

sudo chmod -R 777 path/to/root
sudo chown -R www-data:www-data /path/to/root
sudo usermod -a -G www-data ubuntu
sudo find /path/to/root -type f -exec chmod 644 {} ;
sudo find /path/to/root -type d -exec chmod 755 {} ;
sudo chgrp -R www-data storage bootstrap/cache
sudo chmod -R ug+rwx storage bootstrap/cache