POST array in AJAX

Question

My problem is

jQuery.ajax({
    type: "POST",
    url: "../ajax/si-notificar_investigacion.php",
    data: {
        idincidente: $("#idincidente").val(),
        arrControlls : arrControlls
    },
    dataType: 'json',
    async: false,
    success: function(datos) {
        alert(datos);

    }
});

this is my ajax

Now I use arrControlls variable as array which is comes from another function

now if arrControlls is like

[0] = "test1";
[1] = "test1";
[2] = "test1";

then it is okey I get this variable as an array in action page

BUT if I use value like this

['sid_1'] = "test1";
['sid_2'] = "test1";
['sid_3'] = "test1";

then I do not get variable in action page WHY?

adding this lines for more detail

I am using jquery function for getting data

function getAllControllValue()
{

    var  arrControlls = new Array();
    $("#container-div input").each(function(){
        arrControlls[$(this).attr('id')] = $(this).val();
    });
    return arrControlls;
}

Use objects (which your array will be converted to anyway), but that probably means the structure of the data sent to the server changes as well — adeneo
– adeneo, Commented Feb 18, 2015 at 6:45

Quentin · Accepted Answer · 2015-02-18 07:15:23Z

2

Arrays are expected to have sequential, numeric indexes. That is what they are for. You can give them named properties, but tools designed to do something with the data in the array tend to ignore them.

Given an array anywhere in data, jQuery will only pay attention to the numeric indexes.

If you want to have named keys, then use a plain object.

Initialise arrControlls with {} not new Array().

answered Feb 18, 2015 at 7:15

Quentin

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1 Comment

Chintan Gor Over a year ago

You are correct I just replace [] with {} and all the data are listed in action page thanks I mean new array

Ruprit · Accepted Answer · 2015-02-18 06:56:53Z

-1

User JSON.stringify like this: JSON.stringify(arrControlls)

jQuery.ajax({
    type: "POST",
    url: "../ajax/si-notificar_investigacion.php",
    data: {
        idincidente: $("#idincidente").val(),
        arrControlls : JSON.stringify(arrControlls)
    },
    dataType: 'json',
    async: false,
    success: function(datos) {
        alert(datos);

    }
});

answered Feb 18, 2015 at 6:56

Ruprit

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4 Comments

Ruprit Over a year ago

What is the error you are getting? After doing this.

Chintan Gor Over a year ago

Not have any value in array in POST no error comming

Quentin Over a year ago

JSON.stringify will also ignore named properties on arrays.

anu Over a year ago

typeof Array !== type Object @pritzzz

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