REPLACE your YOURSERVERPILOTUSER with your username for the app. AND also, REPLACE APPNAME with your app name.
sudo cp -R /usr/local/Saxonica/Saxon-HEC1.1.0/samples /srv/users/YOURSERVERPILOTUSER/apps/APPNAME/public/php
sudo chown -R YOURSERVERPILOTUSER:YOURSERVERPILOTUSER /srv/users/YOURSERVERPILOTUSER/apps/APPNAME/public/php