jQuery .post syntax

[sssweb]

I'm using jQuery .post() [see: [api.jquery.com ]] to send data to a PHP file for processing and can't get it to work. It's likely a simple syntax error, but I don't see it. Here's my code:

function do_php(){
var $data = "test";
$.post("/file.php", {data:$data});
}
window.onload = do_php;

My PHP file reads the data via:

$my_var = $_POST['data'];

I had this working at one point, but something got changed somewhere along the line & I can't get back.

If it helps, I don't even get info when I add the 'success' callback function:

$.post("/file.php", {data:$data}, function(data){alert(data);});

[sssweb]

RESOLVED - this was a path issue; .post() doesn't accept relative paths except in the same directory.

[sssweb]

In case anyone is following this or finds it via search, here's a critical update:

jQuery .post() DOES accept relative paths; what happened in my case is that, for general website security, I added an .htaccess file with "deny from all" to a directory that contained my php script. Since jQuery .post() requests the page via HTTP, my .htaccess denied it.

So if you're sure your code is right but get no result, that may be why.

Live & learn.