Try creating the file /var/www/test.php
with the following contents:
<?php phpinfo(); ?>
Then on the same network, open a browser and go to http://192.168.0.??/test.php
...but replace the IP with the local IP of your server.
If you run the browser on
your server you can go to http://localhost/test.php
If everything is working, you'll see a page listing all of PHP's settings and installed modules.