Send value temp on web site by php

Hi, how i can send a value of temperature on a page? I use xamp. I'd like check on my smartphone what temperature is in my room. How can i do? Thanks

You need to say what is your hardware. What do you have? A Ethernet shield?

I have Arduino Uno rev.3

cosmoweb:
I have Arduino Uno rev.3

Do you have an Ethernet shield or a WiFi shield? If not, how do you propose to have the Arduino connect to the internet?