This link will display the result of a PHP script that in turn contacts the webserver on a Ardunio running in my garage to tell you what the temperature and humidity is out there.

In reality the Arduino webserver return the state of all its analogue and digital inputs, in addition the the results from a sensor mounted on a prototyping board (a shield in Arduino speak) - and the PHP script filters out all the other data before it serves the webpage.

It has been sitting there for 3 days now - and so far no problems.