Ah, got it. The Post is correct and the Respons is correct... I think. It's in JSON, but not sure if it's correct.
According to http://docs.jquery.com/Ajax/jQuery.post, last example, they have the following line in the php file: <?php echo json_encode(array("name"=>"John","time"=>"2pm")); ?> This is why they can output the info by alert(data.name). But if I try this: while ($row = mysql_fetch_array($result)) { $data[] = array( "id"=>($row['id']) , "name"=>($row['name'])); } $storeData = json_encode($data); I still get 'undefined' output :( On 16 Apr, 15:36, Josch <jluelsd...@googlemail.com> wrote: > By hitting F12, firebug opens up in Firefox. > On the first use, you have to check all three options (Console, > Javascript, Network). > After reloading the page, you can see the requests and its answers > under "Console". > Under "Script", you can debug your scripts. Above "Script" you can > select which script to debug. > There you can set a breakpoint. >