Thanks for posting to the Telerik Developer Forums.
As for the server part, you can keep a PHP server that runs a web service which you can consume from the client app.
Consuming a web service in the mobile app is best achieved with an HTTP request with jQuery AJAX for example.
You can also do this with a Kendo UI Data Source instance that feeds Kendo UI mobile widgets. Demos for all widgets are available here.
Let me know if this answers your question.