jQuery Datatables server_side example not connected to front end

I have implimented the example: http://www.datatables.net/examples/server_side/server_side.html only to discover that this example gets all data up front. even if you are paginating. This means that t开发者_开发百科he pagination doesn't actually send any data to the server...so basically...the server_side example is incomplete.

In other words, let's say I have 100 records with pagination enabled and I am using the server side example. All 100 records load and the backend queries are essentially never called because the UI for the table never sends any query parameters.

I need to know what I'm missing to make this actually send the vars to the PHP. Perhaps somebody could show us a 'working' example?

The parameters the client send to the server are here http://www.datatables.net/usage/server-side
And you can find some scripts to handle the data on the server with different technologies here http://www.datatables.net/development/server-side/