如何使用jQuery UI remote获得服务器端参数？

Question

I have a php ajax script that is getting called by some jQuery, and I can not seem to get the parameters that are being passed. Here is the example I am working from: http://jqueryui.com/demos/autocomplete/#remote

In my php side, I did something like this just to see what my parameters are:

error_log ("1) ".var_dump($_GET));
error_log ("2) ".var_dump($_POST));
error_log ("3) ".var_dump($_REQUEST));

But they all return empty. Can that be? How can I get at the parameters that are being passed?

Thanks!!

Here is my js:

$(function()
{
$( "#birds" ).autocomplete({
    source: "/problems/get_categories_ajax.php",
    minLength: 2,
    select: function( event, ui ) 
    {
        log( ui.item ?
            "Selected: " + ui.item.value + " aka " + ui.item.id :
                "Nothing selected, input was " + this.value );
    }
});

Answer 1

var_dump ( docs ) does not return the dump, it outputs just like echo . Use print_r ( docs ) with the second param set to true

error_log ("1) ".print_r($_GET, true));
error_log ("2) ".print_r($_POST, true));
error_log ("3) ".print_r($_REQUEST, true));