Sending and receiving SMS messages from a PHP application

Question

I want to make Facebook as sending and receiving SMS messages. Is there any PHP API for this? I want to use a specific number like Facebook.

Note
Sending SMS via E-mail is possible, but how can I receive SMS messages through my PHP application? I am looking for a free PHP API without any external hardware for this. Is it possible?

Answer 1

If your search for free does not work:

I recently played with Twilio: http://www.twilio.com/

And they recently cleared their API:

http://blog.twilio.com/2010/08/announcing-the-new-twilio-api-version-2010-04-01.html

. , :)

Answer 2

, , smsgupshup.com API SMS.

Answer 3

This software will allow you to receive SMS in PHP: Receive SMS

It connects to a 3G or GSM modem or to a computer and automatically sends incoming SMS messages to your website, where you can handle them using a simple PHP script