Preamble

It can often be useful to send a little bit of extra information to the server when utilising DataTables' server-side processing option. This can be done by using the fnServerParams callback function which is called whenever an XHR is sent to the server. fnServerParams Takes a single parameter, the array of name/value pairs of parameters that are to be sent to the server. You can manipulate this as you require - typically adding another parameter, as shown in this example.

Live example

Initialisation code

$(document).ready(function() {
	$('#example').dataTable( {
		"bProcessing": true,
		"bServerSide": true,
		"sAjaxSource": "scripts/server_processing.php"
    "fnServerParams": function ( aoData ) {
      aoData.push( { "name": "more_data", "value": "my_value" } );
    }
	} );
} );

Other examples