I update my Web Controller page with arduino web code.You can control all the arduino pins with your code.Example if you write P5H P6L P13H the pin 5 is high,pin 6 low,pin 13 high.Android read data from http://power7.net/arduwebcode.txt
and send via bluetooth to arduino.You must create a sketch for decode the data for your code with indexOf() method. If you change the simple led with IR led you can control a device(for example A/C) with IR signals.
If you have a dyndns account and use your pc with XAMPP or arduino+ethernet shield with sd card you can create your webserver.You must load one php file...look into Resources page ( Arduino using PHP and Processing ).Enjoy your project!!!