Get JSON data from a PHP file to jQuery and put it on selectbox

I have a big problem here. I want to receive data from a PHP file.

I do this:

$("#id_categoria").change(function(){
    var id = $(this).val();
    $.ajax({
        type: "POST",
        url: "<?php echo ROOT . '/control/functions.php'; ?>",
        data: "action=getsubbycat&id="+id,
        success: function(data){
            alert(data);
        }
    });
});

alert(data) returns [{"id_subcategoria":"1","nome":"Port\u00e1teis"},{"id_subcategoria":"2","nome":"Desktop"}].

And how can I consume this? And put in <option value="2">Desktop</option>?

And why is Portáteis equal to Port\u00e1teis? Is it because my database is in UTF-8?开发者_开发技巧

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You could use parseJSON to turn the string into a JSON object, then either build an object to insert into DOM using JQuery, or document.write() the desired output.

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You should use

var new_data = $.parseJSON(data)

to get the object.

Now you can use object.nome, etc.

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Try

var new_data = $.parseJSON(data);

And when you want nome, try the following.

alert(new_data[0].nome);