将带有ajax的数组传递给服务器

Question

I try to pass ids as array via ajax but when I dump out the get variable on server side with PHP I do not get any values, the array is empty. Debugging with firebug I see that the array is getting passed but [] is encoded ids%5B%5D

my javascript

  function update_category(selected) {
        $.ajax({
            url: '/admin/?controller=products&action=update_category',
            type: 'GET',
            dataType: "application/JSON",
            data: {
                ids: cat_ids,
                s_category: selected
            },
            success: function(data) {
                addAlert('alert-'+data, data);
            },
            error: function(data) {
                addAlert('alert-'+data.responseText, data.responseText);
            }
        });
    }

var_dump $_GET['ids'] null dumping the hole $_GET I get ["ids%5B%5D"]

I do not understand why the array is getting encoded on submit in linux environment

Under ubuntu 12.10 PHP 5.3.10 Firebug XHR->PARAMS

  action    update_category
    controller  products
    ids%5B%5D   1403172219
    ids%5B%5D   1530542001
    s_category  1

how to pass properly the array?

Answer 1

Since you are already passing GET values int he URL here:

/admin/?controller=products&action=update_category

Then the information in data probably never passes.

Try this instead:

  function update_category(selected) {
        $.ajax({
            url: '/admin/',
            type: 'GET',
            dataType: "application/JSON",
            data: {
                ids: cat_ids,
                s_category: selected,
                controller: 'products',
                action: 'update_category'
            },
            success: function(data) {
                addAlert('alert-'+data, data);
            },
            error: function(data) {
                addAlert('alert-'+data.responseText, data.responseText);
            }
        });
    }