Tutorial on How to Send Text Messages with PHP
Text messaging has become extremely widespread throughout the world – to the point where an increasing number of web applications have integrated SMS to notify users of events, sales or coupons directly through their mobile devices. Nettuts has written a tutorial: How to Send Text Messages with PHP.
There are a myriad of methods to accomplish the task of sending a SMS through a web application. This method is really meant for low volume messaging (most likely less than 1,000 text messages per month) and developers looking to get their feet wet without forking out cash.