how to save data from ultrasonic sensor Hc-SR04 to database mysql and php

I need help , how to save data from ultrasonic sensors to php mysql database i'm using arduino uno ethernet shield W5100, thanks...

What part(s) do you need help with?

Have you figured out what role (client or server) the Arduino is going to take on?

Have you figured out how to get distance information from the sensor?

Have you figured out that "php mysql" makes no sense? PHP is a scripting language. MySQL is a relational database. PHP can be used to build scripts that can store data in, and retrieve data from, a MySQL database, but "php mysql" indicates that you haven't a clue how to do that.