PHP is an interpreted language used for creating web applications. The implementation here uses WSO2 Web Services Framework for PHP (WSF/PHP). WSF/PHP is an extension to PHP that provides a framework for developing web services that support the WS-* standards. PHP depends on an HTTP server for hosting.
The PHP implementation of the Stonehenge StockTrader Sample Application is available in the trunk. It currently contains an implementation of the StockTrader Client, the StockTrader Business Service, the StockTrader Order Processor Service, and the StockTrader Configuration Service.