Create Web Service Using PHP, MySQL, XML, and JSON

Web services are taking over the world. I credit Twitter’s epic rise to the availability of a simple but rich API. Why not use the same model for your own sites? Here’s how to create a basic web service that provides an XML or JSON response using some PHP and MySQL.

Sources

http://davidwalsh.name/web-service-php-mysql-xml-json

http://www.slideshare.net/bpedro/php-and-web-services