Send and receive SMSs to a PHP script?

Can a PHP script (which can be working with a MySQL DB) send and/or receive SMSs using some sort of server-side solution?

Any special server-side application, or special hardware required?
And compatibility? Windows, Linux?

Answer

There are plenty of companies like Esendex that offer APIs for sending/receiving SMS messages. I’m not sure if you’re looking to send them directly from your hardware though?