Control arduino from webserver with android as GPRS shield

Hello.I want to control my arduino (led on/off example) from my webserver www.mydomain.com/arduino.php with an android phone connect via bluetooth shield or with usb shield or with cable otg....Any example?Help?Application for this?Thanks.

This is more of an Android problem than an Arduino. Have you asked this question on an Android forum? "How can I make my Android a GPRS server to be accessed from the Internet?"

That's your problem, controlling the Arduino then is relatively easy.