提交并加载ajax json

Question

index.html:

Function drawChart() {
            var jsonData = $.ajax({
                url: "server.php",
                dataType: "json",
                async: false
            }).responseText;

            var obj = jQuery.parseJSON(jsonData);

            var data = google.visualization.arrayToDataTable(obj);

            var options = {
                title: 'Number of visitors / <?php echo $unit; ?>'
            };

            var chart = new google.visualization.BarChart(
                        document.getElementById('chart_div'));
            chart.draw(data, options);
    }       
       }

server.php:

$SQLString = "SELECT (...)'".$_POST['value']."' (...)
$result = mysql_query($SQLString);  
(...)
$data[$i] = array(...)
echo json_encode($data);

---

So, index.html get data from server.php right? Can I send some values to server.php which are important to do the query before index.html do the jsonData...etc? How?

Thanks :)

Answer 1

Example of a query parameter:

var jsonData = $.ajax({
                url: "server.php?someQuery=" + query,
                dataType: "json",
                async: false
            }).responseText;