IBM's WebSphere sMash development team has made V220.127.116.11 of the product available for download. V18.104.22.168 as well as our latest experimental drivers are available for download from the Project Zero Community (http://www.projectzero.org). If you're not familiar with WebSphere sMash you should give it a try. It's a development and runtime environment that's intended to revolutionize creation of dynamic, RESTful web apps based on Web 2.0 technologies & dynamic scripting languages (PHP being one of them!).
V22.214.171.124 builds on our V1.1 release and adds additional PHP performance improvements, a new PHP to Groovy bridge (call Groovy classes from PHP), and a number of enhancements requested in our Project Zero community. For example supporting Zero forms in Assemble Flows, supporting PHP in Assemble Flows, and explicit HTTP Cookie support in our Connection API.
Check it out at Project Zero and provide us your feedback and comments on it.